NPPES file of Aug 9, 2026

Yan Zhang, MD, PHD

Epilepsy Physician · Hartford, CT

Yan Zhang, MD, PHD is an epilepsy physician with a practice address in Hartford, Connecticut, and NPI 1851526651, issued on May 21, 2009. Check the license (Connecticut 050161, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1851526651
Name
Yan Zhang
Credential
MD, PHD
Primary taxonomy
Epilepsy Physician 2084E0001X
License number
050161 CT
Self-reported in NPPES; status is on the state search
Practice location
80 Seymour Street, Hartford, CT 06102
Phone
(860) 545-3621
Enumerated
May 21, 2009
Record last updated
Jul 5, 2024
Medicaid ID
001501618 CT
Medicare enrollment
Enrolled (PECOS I20120601000028); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 80 Seymour Street

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

  1. Lincoln Abbott, MDEmergency Medicine Physician1518965433
  2. Marie Achong, M.D.Obstetrics & Gynecology Physician1700806213
  3. Allison Adajian, PA-CSurgical Physician Assistant1619129582
  4. Clark Adams, PA-CPhysician Assistant1245329457
  5. Swetha Ade, M.D.Epilepsy Physician1801155296
  6. Ross Albert, MDHospice and Palliative Medicine (Family Medicine) Physician1124291448

Verify Yan Zhang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 050161
    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 Connecticut 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.1 times the Medicare Part D claims of the average epilepsy physician in 2024

1,920 Medicare Part D claims for 218 beneficiaries, against an average of 934 among the 476 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Yan Zhang1,920
  2. Specialty average934

Most prescribed

  1. Levetiracetam216 claims
  2. Lamotrigine173 claims
  3. Lacosamide133 claims
  4. Xcopri116 claims
  5. Lamotrigine Er91 claims
  6. Oxcarbazepine76 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): 84.5 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.

  1. Qualityout of 100 · 30% of the final score79.3
  2. Costout of 100 · 30%59.6
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Hartford Healthcare Medical Group Specialists PLLCSouthington, CT

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

Epilepsy Physician providers in Connecticut

There are 10 epilepsy physician records in Connecticut.

Other epilepsy physician records in Connecticut

  1. Swetha Ade, M.D.Hartford, CT1801155296
  2. Gordon Buchanan, MD, PHDNew Haven, CT1558543595
  3. Nicole Casson, MDNew Haven, CT1780265520
  4. Maria Kristina Dorotan, MDNew Haven, CT1982125282
  5. Lisa Knopf, M.D.Hartford, CT1073806345
  6. Gabriel Martz, M.D.Hartford, CT1780809541
  7. Sarah Meira Benchaya, M.D.Hartford, CT1831503101
  8. Anumeha Sheth, MDHartford, CT1942514773
  9. Meghan Ward, M.D.Norwich, CT1134413412

Common questions

What is Yan Zhang, MD, PHD's NPI number?

Yan Zhang, MD, PHD's National Provider Identifier (NPI) is 1851526651, issued on May 21, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Yan Zhang, MD, PHD located?

The NPPES record lists a practice address at 80 Seymour Street, Hartford, CT, 06102. Phone: (860) 545-3621. Providers update this record themselves, so call before visiting.

How can I verify Yan Zhang, MD, PHD's license?

NPPES lists Connecticut license number 050161, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yan Zhang, MD, PHD prescribe under Medicare Part D?

In 2024, Yan Zhang, MD, PHD had 1,920 Medicare Part D claims for 218 beneficiaries; the average among epilepsy physician prescribers was 934. Part D covers Medicare prescriptions only.

What is Yan Zhang, MD, PHD's MIPS final score?

The 2023 MIPS final score is 84.5 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.