Peien Fan, M.D.
Neurology Physician · Mercer Island, WA
Peien Fan, M.D. is a neurology physician with a practice address in Mercer Island, Washington, and NPI 1346504511, issued on Jul 2, 2012. Check the license (Washington MD60752943, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Peien Fan
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- MD60752943 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4736 91St Ave SE, Mercer Island, WA 98040
- Phone
- (773) 703-6770
- Enumerated
- Jul 2, 2012
- Record last updated
- Aug 13, 2024
- Medicare enrollment
- Enrolled (PECOS I20171120002622); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2012
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 489 in Washington → Look up another NPI →
Verify Peien Fan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60752943Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average neurology physician in 2024
527 Medicare Part D claims for 99 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Lamotrigine71 claims
- Levetiracetam67 claims
- Donepezil Hcl53 claims
- Oxcarbazepine41 claims
- Gabapentin28 claims
- Levetiracetam Er24 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $100.08
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- American Neuromonitoring Associates, PCMercer Island, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peien Fan among 489 neurology physician records in Washington
Peien Fan, M.D. is one of 489 neurology physician records with a practice address in Washington. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 64% of them.
- NPI issued2012 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2007 among the 351 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Washington
There are 489 neurology physician records in Washington.
All 489 in Washington → Every provider in Mercer Island → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Jennifer Davis, DOMaple Valley, WA 980381831485846
- Haley Anderson, M.D.Lynnwood, WA 980361538401336
- Erik Armitano, MDKirkland, WA 980341649351347
- Daniel Burdick, MDKirkland, WA 980341073750105
- Vikas Dalwadi, DOKirkland, WA 980341164929170
- Arash Fazl, M.D. , PH.D.Kirkland, WA 980341780973800
- Vikram Jadhav, MD, PHDKirkland, WA 980341972823623
- Marlan Kay, M.D.Kirkland, WA 980341619175155
Common questions
What is Peien Fan, M.D.'s NPI number?
Peien Fan, M.D.'s National Provider Identifier (NPI) is 1346504511, issued on Jul 2, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Peien Fan, M.D. located?
The NPPES record lists a practice address at 4736 91St Ave SE, Mercer Island, WA, 98040. Phone: (773) 703-6770. Providers update this record themselves, so call before visiting.
How can I verify Peien Fan, M.D.'s license?
NPPES lists Washington license number MD60752943, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peien Fan, M.D. prescribe under Medicare Part D?
In 2024, Peien Fan, M.D. had 527 Medicare Part D claims for 99 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Peien Fan, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.