NPPES file of Aug 9, 2026

Yi Zhang, GNP

Gerontology Nurse Practitioner · Waltham, MA

Yi Zhang, GNP is a gerontology nurse practitioner with a practice address in Waltham, Massachusetts, and NPI 1083763908, issued on Jan 9, 2007. Check the license (Massachusetts 206717, 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
1083763908
Name
Yi Zhang
Credential
GNP
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
206717 MA
Self-reported in NPPES; status is on the state search
Practice location
950 Winter St, Waltham, MA 02451
Phone
(781) 472-8796
Enumerated
Jan 9, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 950 Winter St

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

  1. Francisca Adams, MSN, APRN, BCGerontology Nurse Practitioner1477603819
  2. Kerry Assarian, NPAdult Health Nurse Practitioner1457499923
  3. Marina Borocov, NPGerontology Nurse Practitioner1326372483
  4. Anne Marie Bourque, NPNurse Practitioner1871544981
  5. Karin Broden, NPAdult Health Nurse Practitioner1134141427
  6. Florence Calore, R.N., MS. NPGerontology Nurse Practitioner1942367552

Verify Yi Zhang 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 206717
    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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29% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

967 Medicare Part D claims for 70 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 52 claims were for opioids.

  1. Yi Zhang967
  2. Specialty average1,369

Most prescribed

  1. Triamcinolone Acetonide53 claims
  2. Famotidine47 claims
  3. Levothyroxine Sodium46 claims
  4. Metformin Hcl40 claims
  5. Trazodone Hcl38 claims
  6. Sertraline Hcl36 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.

Yi Zhang among 379 gerontology nurse practitioner records in Massachusetts

Yi Zhang, GNP is one of 379 gerontology nurse practitioner records with a practice address in Massachusetts. 70% 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 16% of them.

  • NPI issued2007 · 16% of these records are older, 73% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 51% of these records are
  • Record last updated2007 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

33 gerontology nurse practitioner records list a practice address in Waltham

They are 33 of the 2,111 NPPES records with a practice address in Waltham, and 379 gerontology nurse practitioner records in Massachusetts.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Francisca Adams, MSN, APRN, BCWaltham, MA 024511477603819
  2. Mary Bannon, NPWaltham, MA 024511043392590
  3. Florence Calore, R.N., MS. NPWaltham, MA 024511942367552
  4. Cheryl Hatch, NPWaltham, MA 024511245381342
  5. Linda Martin, APRN, BCWaltham, MA 024511346399193
  6. Mary Miller, ANP,GNPWaltham, MA 024511790834166
  7. Susan Mullaney, NPWaltham, MA 024511114081247
  8. Linda Satkowski, NPWaltham, MA 024511043360837

Common questions

What is Yi Zhang, GNP's NPI number?

Yi Zhang, GNP's National Provider Identifier (NPI) is 1083763908, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Yi Zhang, GNP located?

The NPPES record lists a practice address at 950 Winter St, Waltham, MA, 02451. Phone: (781) 472-8796. Providers update this record themselves, so call before visiting.

How can I verify Yi Zhang, GNP's license?

NPPES lists Massachusetts license number 206717, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Yi Zhang, GNP prescribe under Medicare Part D?

In 2024, Yi Zhang, GNP had 967 Medicare Part D claims for 70 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.

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.