Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or District of Columbia for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to District of Columbia only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. District of Columbia (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Nana Asamoah-mensah (NPI 1023103587)

Field	Value
Entity Type	Individual
Organization	Nana Asamoah-mensah
Address	1140 Varnum St Ne
City	Washington
State	DC
ZIP	20017
Taxonomy	Neurology Physician
NPI Enumerated	October 3, 2006

Payer Source	Total Paid
Medicare	$389.5K
Medicaid	$0

Key Findings

This provider’s Medicare revenue is $389.5K with no Medicaid billing on file, making their commercial exposure effectively single‑payer (Medicare) in the available data; absence of any Medicaid claims suggests little to no participation in state Medicaid fee‑for‑service or lack of billing to that program. The lack of Medicaid revenue concentrates payer risk on Medicare reimbursement trends and policy changes.

Revenue concentration is very high: the precomputed top‑3 Medicare codes account for 76.8% of total Medicare revenue, and those top codes are 99232 ($167K, 42.8%), 99214 ($105.9K, 27.2%), and 95816 ($26.8K, 6.9%). This indicates that a small set of E/M and diagnostic EEG services drive the bulk of income rather than a broad mix of procedures.

Clinical/service‑line implications from the code mix point to a neurology practice that combines high-volume inpatient follow-up E/M work and established outpatient visits with on‑site diagnostic testing. The top codes 99232 (subsequent inpatient/observation E/M) and 99214 (established outpatient E/M) plus 95816 (EEG, awake and drowsy) signal an operational model centered on hospital‑based follow‑up care and clinic‑based electrodiagnostics rather than a procedure‑heavy surgical specialty.

Competitive standing for the lead E/M code is extreme: 99232 is described as an extreme outlier and ranks #884 of 177383 providers nationally (100th percentile), indicating this provider bills substantially more for that inpatient follow‑up code than nearly all peers. 99214 also ranks well above peers (#11458 of 479517, 98th percentile) and is labeled notably above typical national volume, so the provider is a major national outlier on two high‑revenue E/M codes rather than being a modest local contributor.

Other diagnostic codes (for example 95816 at #789 of 3834, 79th percentile; 93925 at #1653 of 10098, 83rd percentile; and 93880 at #5365 of 21316, 74th percentile) are characterized as typical or unremarkable volume when compared to national peers. These mid‑to‑high percentile placements imply the provider performs a routine but meaningful volume of EEG, vascular duplex, and nerve conduction services that complement the heavy E/M workload rather than replace it.

Tenure on file is long‑standing: the NPI was enumerated on 2006-10-03 (~20 years ago), consistent with an established practice presence. That longevity, combined with concentrated Medicare billing, suggests an experienced clinician whose practice patterns have been stable enough to generate a consistent Medicare revenue stream over time.

Operational and revenue risk note: because $389.5K in lifetime Medicare revenue is concentrated (76.8% from the top three codes) and there is no Medicaid activity, any shifts in Medicare inpatient/outpatient E/M valuation or utilization for 99232 and 99214 could materially affect overall revenue. Analysts should consider monitoring utilization trends and payer policy changes specific to those E/M codes given the provider’s reliance on them.

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

11 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
99232	The provider sees a patient for a subsequent hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a moderate level of medical decision making or…	2,420	$70	$167K
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	1,000	$110	$105.9K
95816	Electroencephalogram or EEG is a diagnostic test that uses small electrodes attached to the scalp to measure the electrical activity of the brain. In this procedure the provider performs the EEG…	80	$350	$26.8K
93925	The provider performs a duplex ultrasound scan of the lower extremity arteries or bypass grafts on both sides. Providers perform noninvasive arterial diagnostic procedures to examine the rate of…	80	$230	$18.2K
93880	Duplex scanning of arteries for the evaluation of blood flow is a type of non–invasive vascular diagnostic process. A physician can visualize and selectively assess the flow patterns of peripheral…	90	$180	$15.2K
95913	In this procedure, the provider performs 13 or more nerve conduction studies, a diagnostic test to evaluate function, especially the electrical conduction ability of the motor and sensory nerves of…	60	$260	$15K
99222	The provider sees a patient for an initial hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a moderate level of medical decision making or…	100	$110	$11.2K
99204	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the provider…	80	$120	$10K
99215	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a high level of medical decision making, and/or the…	70	$150	$9.5K
95819	Electroencephalogram or EEG is a diagnostic test that uses small electrodes attached to the scalp to measure the electrical activity of the brain. In this procedure the provider performs the EEG…	20	$400	$6.4K

Showing 1–10 of 11

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 11 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. District of Columbia Distribution

Nana Asamoah-mensah — 3 of 11 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — District of Columbia

Full comparison — all codes billed, vs. state median

11 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
95819	10	10	70	$230	$16.6K
99214	15	1,400	90	$100	$15.3K
95913	4	10	70	$220	$14.9K
93925	6	30	40	$160	$12.4K
99215	255	660	50	$130	$12.3K
93880	15	60	40	$130	$11.1K
95816	5	10	60	$150	$10.3K
95886	7	10	70	$80	$10.3K
99232	3	640	70	$70	$10K
99204	119	670	30	$130	$6.4K

Showing 1–10 of 11

Related Providers

Other providers that share a Tax Identification Number (TIN) with Nana Asamoah-mensah, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Nana Yaw Asamoah-mensah, M.d.,p.c.	DC	Neurology Physician	$0	$1.1M

Nearby Providers

Other providers in the same ZIP code as Nana Asamoah-mensah, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
My Own Place, Inc.	DC	Intellectual and/or Developmental Disabilities Residential Treatment Facility	$0	$48.7M
Anchor Mental Health Association	DC	Mental Health Clinic/Center (Including Community Mental Health Center)	$0	$22M
Hsc Home Care, LLC	DC	Home Health Agency	$0	$14.7M
Providence Health Services Inc	DC	Family Medicine Physician	$0	$13.4M
Providence Hospital	DC	General Acute Care Hospital	$0	$12.2M
American Health Care Services Inc	DC	Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility	$0	$5.3M
Hospital For Sick Children	DC	Special Hospital	$0	$4.7M
United Cerebral Palsy Of Washington & No. Virginia, Inc.	DC	Developmentally Disabled Services Day Training Agency	$0	$4.4M
Gerald Family Care	DC	Family Medicine Physician	$0	$3.2M
Cheryl Lee	DC	Dentist	$0	$2.5M

Nana Asamoah-mensah — Billing Profile & Reimbursement Data

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Nana Asamoah-mensah — Billing Profile & Reimbursement Data

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Key Findings

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References