NPPES file of Aug 9, 2026

Phillip David Zhang, MD

Rheumatology Physician · New Haven, CT

Phillip David Zhang, MD is a rheumatology physician with a practice address in New Haven, Connecticut, and NPI 1619363231, issued on Apr 10, 2015. Check the license 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619363231
Name
Phillip David Zhang
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
25MA10862700 NJ
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 688-4242
Enumerated
Apr 10, 2015
Record last updated
Jun 12, 2023
Medicare enrollment
Enrolled (PECOS I20230627000323); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2015
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.
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Also registered at 20 York St

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

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Phillip David Zhang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck 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

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30% fewer Medicare Part D claims than the average rheumatology physician in 2024

1,376 Medicare Part D claims for 332 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 21 claims were for opioids.

  1. Phillip Zhang1,376
  2. Specialty average1,978

Most prescribed

  1. Prednisone293 claims
  2. Methotrexate288 claims
  3. Hydroxychloroquine Sulfate125 claims
  4. Amjevita(Cf) Autoinjector104 claims
  5. Leflunomide70 claims
  6. Enbrel Sureclick63 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.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD

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

Rheumatology Physician providers in Connecticut

There are 145 rheumatology physician records in Connecticut.

Other rheumatology physician records in Connecticut

  1. Crispin Abarientos, M.D.Middletown, CT1124292966
  2. Aryeh Abeles, M.D.Meriden, CT1285737155
  3. Micha Abeles, M.D.Meriden, CT1497751556
  4. Jackilyn Annelli, PANorwich, CT1245085315
  5. Sandra Apenteng, MDGlastonbury, CT1801359138
  6. Catharine Arnold, MDGuilford, CT1306909742
  7. Daisy Bang, MDShelton, CT1356579460
  8. Erik Beger, M.DNorwalk, CT1992801989
  9. Daniel Belin, M.D.Middletown, CT1841265048
  10. Lana Bernstein, M.D.Greenwich, CT1912012857

Common questions

What is Phillip David Zhang, MD's NPI number?

Phillip David Zhang, MD's National Provider Identifier (NPI) is 1619363231, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Phillip David Zhang, MD located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.

How can I verify Phillip David Zhang, MD's license?

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 Phillip David Zhang, MD prescribe under Medicare Part D?

In 2024, Phillip David Zhang, MD had 1,376 Medicare Part D claims for 332 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.