NPPES file of Aug 9, 2026

Sean Feng, NP

Adult Health Nurse Practitioner · Boston, MA

Sean Feng, NP is an adult health nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1417427535, issued on Dec 1, 2018. Check the license (Massachusetts RN2261119, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1417427535
Name
Sean Feng
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
RN2261119 MA
Self-reported in NPPES; status is on the state search
Practice location
800 Washington St, Boston, MA 02111
Phone
(617) 636-6227
Enumerated
Dec 1, 2018
Record last updated
Dec 26, 2022
Fax
(617) 636-8538
Medicare enrollment
Enrolled (PECOS I20191030002334); 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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8 nearest adult health nurse practitioner records → All 1,465 in Massachusetts → Look up another NPI →

Also registered at 800 Washington St

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

  1. Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
  2. Omer Abbak, PHARMDPharmacist1114500337
  3. Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
  4. Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
  5. Ahmad AboalfarajSurgery Physician1538517651
  6. Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250

Verify Sean Feng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2261119    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
Find the Massachusetts 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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85% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

195 Medicare Part D claims for 40 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Sean Feng195
  2. Specialty average1,280

Most prescribed

  1. Eliquis51 claims
  2. Deferasirox21 claims
  3. Enoxaparin Sodium14 claims
  4. Jakafi12 claims
  5. Mycophenolate Mofetil12 claims
  6. Ferriprox (2 Times A Day)11 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.

Industry payments in 2024: $597.23

17 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sean Feng$597.23
  2. Specialty average$946.40

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. Pratt Medical Group IncBoston, MA

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

Sean Feng among 1,465 adult health nurse practitioner records in Massachusetts

Sean Feng, NP is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 86% of them.

  • NPI issued2018 · 86% of these records are older, 12% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2018 · median 2010 among the 634 with a school on file
  • Record last updated2022 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

454 adult health nurse practitioner records list a practice address in Boston

They are 454 of the 41,865 NPPES records with a practice address in Boston, and 1,465 adult health nurse practitioner records in Massachusetts.

All 1,465 in Massachusetts → Every provider in Boston → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Maureen Abbott, NPBoston, MA 021111457591638
  2. Marianne Broderick, APRN BCBoston, MA 021111710195334
  3. Elene ChuiBoston, MA 021111063622520
  4. Judith Duffy, APRN BCBoston, MA 021111033327838
  5. Susan Greene-Hellman, APRN BCBoston, MA 021111417167479
  6. Diane Grogan, NPBoston, MA 021111043429582
  7. Lauren Keefe, N.P.Boston, MA 021111659527448
  8. Margaret O'Connor, APRN BCBoston, MA 021111922216415

Common questions

What is Sean Feng, NP's NPI number?

Sean Feng, NP's National Provider Identifier (NPI) is 1417427535, issued on Dec 1, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sean Feng, NP located?

The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-6227. Providers update this record themselves, so call before visiting.

How can I verify Sean Feng, NP's license?

NPPES lists Massachusetts license number RN2261119, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Sean Feng, NP prescribe under Medicare Part D?

In 2024, Sean Feng, NP had 195 Medicare Part D claims for 40 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.