2026 NPPES data Hospitalist Physician NPI 1164630299 MD
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TOKZHAN CLAY, MD

Hospitalist Physician in FREDERICKSBURG, Virginia. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
471
Medicare Part D claims · 54 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95.1126/100
▲ 12 pts above national avg 83.1 · [object Object]
What the federal data reveals: TOKZHAN CLAY, MD is a Hospitalist Physician ([object Object]) practicing in FREDERICKSBURG, Virginia with a Medicare Part D prescribing footprint of 471 claims across 54 beneficiaries — 7% brand-name prescribing . Their CMS MIPS Final Score of 95.1126/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: TOKZHAN CLAY, MD reported a CMS MIPS final score of 95.1126 out of 100, above the 83.1 national average, and filed 471 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

TOKZHAN CLAY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

TOKZHAN CLAY, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/21/2007

NPI 1164630299

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

471 47% vs specialty avg

2023 prescription claims

Specialty avg: 888

MIPS final score

95.1126/100 12.012600000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Virginia

How Hospitalist Physician compares to other specialties among Virginia providers

Virginia providers

Hospitalist Physician share within Virginia

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within Virginia

Medicare quality performance — MIPS

TOKZHAN CLAY, MD's 2023 MIPS final score plotted against the Hospitalist Physician national average

High performer (top quartile)
MIPS Final Score
95.1126/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hospitalist Physician) — 95.1126/100 vs national avg 83.1

0%100%National avg83%95.1%
MIPS final score (Hospitalist Physician) — 95.1126/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

TOKZHAN CLAY, MD is a Hospitalist Physician provider practicing in FREDERICKSBURG, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1164630299. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

TOKZHAN CLAY, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 3031 PLANK RD, FREDERICKSBURG, VA, 22401, with a listed phone of (540) 736-5043. NPI 1164630299 was issued on 05/21/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLAY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 471 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $15K in drug spend, split 7% brand-name and 93% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.1126/100 for the 2023 performance year (Quality 86.3184), compared with the national average of 83.1.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3031 PLANK RD
FREDERICKSBURG, VA 22401

Provider Details

NPI 1164630299
Specialty Hospitalist Physician
Credentials MD
Gender Female
NPI Issued 05/21/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

95.1126
Final Score
Avg: 83.1
86.3184
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where TOKZHAN CLAY, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MICHUMI PLLC
NEWPORT NEWS, VA
SENTARA MEDICAL GROUP
VIRGINIA BEACH, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Generic-heavy

TOKZHAN CLAY, MD — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 471 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

471
Total Claims
$15K
Total Drug Cost
54
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
484
Total Day Supply
12,976
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$7K
Generic Drug Cost
$8K
Antibiotic Claims
19

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.80
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
45
Levothyroxine Sodium
29
Metformin Hcl
29
Amlodipine Besylate
27
Pantoprazole Sodium
21
Metoprolol Succinate
19
Furosemide
17
Sertraline Hcl
17
Losartan Potassium
15
Quetiapine Fumarate
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hospitalist Physician Overview

How TOKZHAN CLAY, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

TOKZHAN CLAY, MD's 471 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Virginia

Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as CLAY.

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TOKZHAN CLAY, MD's specialty?
TOKZHAN CLAY, MD specializes in Hospitalist Physician and practices in FREDERICKSBURG, Virginia. Credentials: MD.
How much does TOKZHAN CLAY, MD prescribe under Medicare Part D?
In 2023, TOKZHAN CLAY, MD wrote 471 Medicare Part D claims totaling $15K in drug costs for 54 beneficiaries.
What is TOKZHAN CLAY, MD's Medicare quality score?
TOKZHAN CLAY, MD has a CMS MIPS Final Score of 95.1126/100 (Quality: 86.3184). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is TOKZHAN CLAY, MD located?
TOKZHAN CLAY, MD is located at 3031 PLANK RD, FREDERICKSBURG, VA, 22401. Phone: (540) 736-5043.
What is TOKZHAN CLAY, MD's NPI number?
TOKZHAN CLAY, MD's National Provider Identifier (NPI) is 1164630299, issued on 05/21/2007.
Does TOKZHAN CLAY, MD prescribe more brand-name or generic drugs?
TOKZHAN CLAY, MD's prescribing is 7% brand-name and 93% generic drugs by claim count, with $7K in brand drug costs.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does TOKZHAN CLAY, MD prescribe most often?
Based on 2023 Medicare Part D data, TOKZHAN CLAY, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TOKZHAN CLAY, MD accept Medicare?
TOKZHAN CLAY, MD appears in CMS Medicare data with 471 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TOKZHAN CLAY, MD's credentials?
TOKZHAN CLAY, MD's NPI is 1164630299 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology