2026 NPPES data Neurology Physician NPI 1912997990 MD
Verify on CMS →

FEIYU CHEN, MD

Neurology Physician in MEMPHIS, 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
2K
Medicare Part D claims · 263 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.3313/100
▼ 2 pts below national avg 83.1 · [object Object]

What the federal data shows

FEIYU CHEN, MD reported a CMS MIPS final score of 81.3313/100 — below the 83.1 national average — and filed 1,727 Medicare Part D claims in 2023.

81.3313/100
MIPS score · -2 vs avg
2K
Part D claims, 2023
94%
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.

FEIYU CHEN, MD's MIPS score vs every scored U.S. clinician

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

81 36th percentile higher than 36% 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%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. 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)

FEIYU CHEN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 FEIYU CHEN, MD?

Near national average

NPI registry status

Active

Issued 10/21/2005

NPI 1912997990

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,727 32% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

81.3313/100 1.7686999999999955% pts

Above neutral 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

FEIYU CHEN, MD's 2023 MIPS final score plotted against the Neurology Physician national average

Near national average
MIPS Final Score
81.3313/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 81.3313/100 vs national avg 83.1

0%100%National avg83%81.3%
MIPS final score (Neurology Physician) — 81.3313/100 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).

FEIYU CHEN, MD is a Neurology Physician provider practicing in MEMPHIS, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1912997990. 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.

FEIYU CHEN, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 6325 HUMPHREYS BLVD, MEMPHIS, TN, 38120, with a listed phone of (901) 522-7700. NPI 1912997990 was issued on 10/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHEN 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 1,727 prescription claims written by this provider, covering 263 Medicare beneficiaries and totaling roughly $323K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 1.2%. 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 81.3313/100 for the 2023 performance year (Quality 83.5021, Cost 62.6023), 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

6325 HUMPHREYS BLVD
MEMPHIS, TN 38120

Provider Details

NPI 1912997990
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 10/21/2005

CMS Quality Score (MIPS)

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

81.3313
Final Score
Avg: 83.1
83.5021
Quality
62.6023
Cost
90
Promoting Interoperability

Reporting: Group practice

Brand vs generic prescribing mix · Generic-heavy

FEIYU CHEN, MD — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 1,727 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.

1,727
Total Claims
$323K
Total Drug Cost
263
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,013
Total Day Supply
88,886
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$249K
Generic Drug Cost
$74K
Opioid Claims
20 (1.2% rate)

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
1.53
Gender Split
67% female / 33% male
Age Distribution
<65: 73, 65-74: 84, 75-84: 80, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levetiracetam
284
Gabapentin
220
Topiramate
128
Donepezil Hcl
111
Lamotrigine
80
Memantine Hcl
69
Sumatriptan Succinate
64
Pregabalin
40
Phenytoin Sodium Extended
39
Carbidopa-Levodopa
Carbidopa/Levodopa
38

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

Neurology Physician Overview

How FEIYU CHEN, MD 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

FEIYU CHEN, MD's 1,727 claims are above 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 CHEN.

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

Frequently Asked Questions

What is FEIYU CHEN, MD's specialty?
FEIYU CHEN, MD specializes in Neurology Physician and practices in MEMPHIS, Tennessee. Credentials: MD.
How much does FEIYU CHEN, MD prescribe under Medicare Part D?
In 2023, FEIYU CHEN, MD wrote 1,727 Medicare Part D claims totaling $323K in drug costs for 263 beneficiaries.
What is FEIYU CHEN, MD's Medicare quality score?
FEIYU CHEN, MD has a CMS MIPS Final Score of 81.3313/100 (Quality: 83.5021, Cost: 62.6023). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is FEIYU CHEN, MD located?
FEIYU CHEN, MD is located at 6325 HUMPHREYS BLVD, MEMPHIS, TN, 38120. Phone: (901) 522-7700.
What is FEIYU CHEN, MD's NPI number?
FEIYU CHEN, MD's National Provider Identifier (NPI) is 1912997990, issued on 10/21/2005.
Does FEIYU CHEN, MD prescribe more brand-name or generic drugs?
FEIYU CHEN, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $249K in brand drug costs.
Does FEIYU CHEN, MD prescribe opioids?
Yes, FEIYU CHEN, MD had 20 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
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 FEIYU CHEN, MD prescribe most often?
Based on 2023 Medicare Part D data, FEIYU CHEN, MD's most frequently prescribed drugs include Levetiracetam, Gabapentin, Topiramate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does FEIYU CHEN, MD accept Medicare?
FEIYU CHEN, MD appears in CMS Medicare data with 1,727 Part D claims and 263 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify FEIYU CHEN, MD's credentials?
FEIYU CHEN, MD's NPI is 1912997990 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