NPPES file of Aug 9, 2026

Fengshuo Lan, M.D.,PH.D.

Hematology & Oncology Physician · Stony Brook, NY

Fengshuo Lan, M.D.,PH.D. is a hematology & oncology physician with a practice address in Stony Brook, New York, and NPI 1649337122, issued on Jan 3, 2007. Check the license (New York 233819, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649337122
Name
Fengshuo Lan
Credential
M.D.,PH.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
233819 NY
Self-reported in NPPES; status is on the state search
Practice location
Stony Brook University Cancer Ctr, Stony Brook, NY 11794
Phone
(631) 638-1000
Enumerated
Jan 3, 2007
Record last updated
Jun 28, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(631) 444-0915
Medicare enrollment
Enrolled (PECOS I20071107000285); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at Stony Brook University Cancer Ctr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lenore Bonanno, MS, PAMedical Physician Assistant1750554515
  2. Yusuf Hannun, M.D.Hematology & Oncology Physician1336413319
  3. Dale Janson, PAHematology & Oncology Physician1326168337
  4. Mary Vagnini, N.P.Family Nurse Practitioner1275634693

Verify Fengshuo Lan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 233819
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

629 Medicare Part D claims for 81 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 25 claims were for opioids.

  1. Fengshuo Lan629
  2. Specialty average877

Most prescribed

  1. Eliquis60 claims
  2. Hydroxyurea34 claims
  3. Acyclovir28 claims
  4. Valacyclovir23 claims
  5. Ursodiol22 claims
  6. Prednisone20 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): 98.5 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.

  1. Qualityout of 100 · 30% of the final score82.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $110.60

3 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Pharmaceuticals, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Fengshuo Lan$110.60
  2. Specialty average$7,481.41

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

  1. Stony Brook Internists University Faculty Practice CorporationStony Brook, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Fengshuo Lan among 1,163 hematology & oncology physician records in New York

Fengshuo Lan, M.D.,PH.D. is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 44% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1989 · median 2002 among the 833 with a school on file
  • Record last updated2013 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 hematology & oncology physician records list a practice address in Stony Brook

They are 24 of the 3,053 NPPES records with a practice address in Stony Brook, and 1,163 hematology & oncology physician records in New York.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Crystal Antoine Pepeljugoski, M.D.Stony Brook, NY 117941073856357
  2. Lea Baer, MDStony Brook, NY 117941609037514
  3. Harold Bien, PH.D., M.D.Stony Brook, NY 117941902049257
  4. Jules Cohen, M.D.Stony Brook, NY 117941215112289
  5. Theodore Gabig, M.D.Stony Brook, NY 117941538194360
  6. Julie Anne Gemmill, DO, MSStony Brook, NY 117941619313160
  7. Achuta Guddati, MDStony Brook, NY 117941457639312
  8. Yusuf Hannun, M.D.Stony Brook, NY 117941336413319

Common questions

What is Fengshuo Lan, M.D.,PH.D.'s NPI number?

Fengshuo Lan, M.D.,PH.D.'s National Provider Identifier (NPI) is 1649337122, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Fengshuo Lan, M.D.,PH.D. located?

The NPPES record lists a practice address at Stony Brook University Cancer Ctr, Stony Brook, NY, 11794. Phone: (631) 638-1000. Providers update this record themselves, so call before visiting.

How can I verify Fengshuo Lan, M.D.,PH.D.'s license?

NPPES lists New York license number 233819, as entered by the provider. 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 Fengshuo Lan, M.D.,PH.D. prescribe under Medicare Part D?

In 2024, Fengshuo Lan, M.D.,PH.D. had 629 Medicare Part D claims for 81 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Fengshuo Lan, M.D.,PH.D.'s MIPS final score?

The 2023 MIPS final score is 98.5 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.