Jack Jienan Fang, M.D.
Hospitalist Physician · Rego Park, NY
Jack Jienan Fang, M.D. is a hospitalist physician with a practice address in Rego Park, New York, and NPI 1083904080, issued on Apr 11, 2011. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jack Jienan Fang
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 260808 MA
Self-reported in NPPES; status is on the state search - Practice location
- 6265 Saunders St Apt 5G, Rego Park, NY 11374
- Phone
- (347) 205-7909
- Enumerated
- Apr 11, 2011
- Record last updated
- Mar 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141121000477); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 2,067 in New York → Look up another NPI →
Verify Jack Jienan Fang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average hospitalist physician in 2024
107 Medicare Part D claims for 38 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of 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 MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Lahey Clinic IncBurlington, MA
- Lowell General Inpatient Specialists PLLCLowell, MA
- Winchester Lahey Inpatient Specialists PLLCWinchester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jack Jienan Fang among 2,067 hospitalist physician records in New York
Jack Jienan Fang, M.D. is one of 2,067 hospitalist physician records with a practice address in New York. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 31% of them.
- NPI issued2011 · 31% of these records are older, 64% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2011 · median 2013 among the 1,716 with a school on file
- Record last updated2018 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in New York
There are 2,067 hospitalist physician records in New York.
All 2,067 in New York → Every provider in Rego Park → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Tahmina Alam, DOForest Hills, NY 113751740801448
- Amy Balot, DOForest Hills, NY 113751144803578
- Ken Chan, DOForest Hills, NY 113751972063832
- Liliana Cruz, MDElmhurst, NY 113731114414711
- Lyonel Day, MDElmhurst, NY 113731578661294
- William FloresForest Hills, NY 113751639537608
- Elad Kasher, DOQueens, NY 113751164042131
- Courtney Kluger, M.D.Forest Hills, NY 113751124360532
Common questions
What is Jack Jienan Fang, M.D.'s NPI number?
Jack Jienan Fang, M.D.'s National Provider Identifier (NPI) is 1083904080, issued on Apr 11, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Jack Jienan Fang, M.D. located?
The NPPES record lists a practice address at 6265 Saunders St Apt 5G, Rego Park, NY, 11374. Phone: (347) 205-7909. Providers update this record themselves, so call before visiting.
How can I verify Jack Jienan Fang, M.D.'s license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jack Jienan Fang, M.D. prescribe under Medicare Part D?
In 2024, Jack Jienan Fang, M.D. had 107 Medicare Part D claims for 38 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Jack Jienan Fang, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.4 of 100. 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.