2026 NPPES data Neurology Physician NPI 1952315475 M.D.
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JOHN FANG, M.D.

Neurology Physician in NASHVILLE, Tennessee. 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
831
Medicare Part D claims · 112 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.1279/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$367.79
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOHN FANG, M.D. reported a CMS MIPS final score of 97.1279/100 — above the 83.1 national average — and filed 831 Medicare Part D claims in 2023.

97.1279/100
MIPS score · +14 vs avg
831
Part D claims, 2023
84%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

JOHN FANG, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

97 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

JOHN FANG, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JOHN FANG, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 07/28/2006

NPI 1952315475

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

831 37% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

97.1279/100 14.027900000000002% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Tennessee

How Neurology Physician compares to other specialties among Tennessee providers

Tennessee providers

Neurology Physician share within Tennessee

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

Medicare quality performance — MIPS

JOHN FANG, M.D.'s 2023 MIPS final score plotted against the Neurology Physician national average

High performer (top quartile)
MIPS Final Score
97.1279/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 97.1279/100 vs national avg 83.1

0%100%National avg83%97.1%
MIPS final score (Neurology Physician) — 97.1279/100 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).

JOHN FANG, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 1161 21ST AVE S, NASHVILLE, TN, 37232, with a listed phone of (615) 936-0060. NPI 1952315475 was issued on 07/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FANG 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 831 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $557K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 2.5%. 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 97.1279/100 for the 2023 performance year (Quality 85.6458), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

1161 21ST AVE S
NASHVILLE, TN 37232

Provider Details

NPI 1952315475
Specialty Neurology Physician
Credentials M.D.
Gender Male
NPI Issued 07/28/2006

CMS Quality Score (MIPS)

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

97.1279
Final Score
Avg: 83.1
85.6458
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JOHN FANG, M.D. 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.

VANDERBILT UNIVERSITY MEDICAL CENTER
★★★★★ 5/5
NASHVILLE, TN
Acute Care Hospitals
CMS CCN: 440039

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for JOHN FANG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$368

Largest payer

Abbott Laboratories

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

JOHN FANG, M.D. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 831 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.

831
Total Claims
$557K
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,669
Total Day Supply
49,170
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$463K
Generic Drug Cost
$93K
Opioid Claims
21 (2.5% rate)

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.34
Gender Split
43% female / 57% male

Top Prescribed Drugs (Medicare Part D)

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

What JOHN FANG, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Carbidopa-Levodopa
Carbidopa/Levodopa
234
Amantadine
Amantadine Hcl
59
Donepezil Hcl
32
Carbidopa-Levodopa Er
Carbidopa/Levodopa
31
Entacapone
27
Clozapine
26
Mirtazapine
26
Rytary
Carbidopa/Levodopa
23
Baclofen
22
Ingrezza
Valbenazine Tosylate
22

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

Neurology Physician Overview

How JOHN FANG, M.D. fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

JOHN FANG, M.D.'s 831 claims are below the specialty average of 1,309.

Nearby Neurology Physician Providers in Tennessee

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

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

Frequently Asked Questions

What is JOHN FANG, M.D.'s specialty?
JOHN FANG, M.D. specializes in Neurology Physician and practices in NASHVILLE, Tennessee. Credentials: M.D..
How much does JOHN FANG, M.D. prescribe under Medicare Part D?
In 2023, JOHN FANG, M.D. wrote 831 Medicare Part D claims totaling $557K in drug costs for 112 beneficiaries.
What is JOHN FANG, M.D.'s Medicare quality score?
JOHN FANG, M.D. has a CMS MIPS Final Score of 97.1279/100 (Quality: 85.6458). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHN FANG, M.D. located?
JOHN FANG, M.D. is located at 1161 21ST AVE S, NASHVILLE, TN, 37232. Phone: (615) 936-0060.
What is JOHN FANG, M.D.'s NPI number?
JOHN FANG, M.D.'s National Provider Identifier (NPI) is 1952315475, issued on 07/28/2006.
Does JOHN FANG, M.D. prescribe more brand-name or generic drugs?
JOHN FANG, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $463K in brand drug costs.
Does JOHN FANG, M.D. prescribe opioids?
Yes, JOHN FANG, M.D. had 21 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does JOHN FANG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOHN FANG, M.D.'s most frequently prescribed drugs include Carbidopa-Levodopa, Amantadine, Donepezil Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN FANG, M.D. accept Medicare?
JOHN FANG, M.D. appears in CMS Medicare data with 831 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN FANG, M.D.'s credentials?
JOHN FANG, M.D.'s NPI is 1952315475 with credentials M.D.. 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