NPPES file of Aug 9, 2026

Amy Zhang, M.D.

Rheumatology Physician · Newark, DE

Amy Zhang, M.D. is a rheumatology physician with a practice address in Newark, Delaware, and NPI 1861811952, issued on Apr 16, 2014. Check the license (Delaware C1-0013253, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; 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
1861811952
Name
Amy Zhang
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
C1-0013253 DE
Self-reported in NPPES; status is on the state search
Practice location
4735 Ogletown Stanton RD Ste 2201, Newark, DE 19713
Phone
(302) 623-4390
Enumerated
Apr 16, 2014
Record last updated
Aug 6, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190828000070); may accept Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2014
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 4735 Ogletown Stanton RD Ste 2201

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

  1. Douglas Lienesch, MDRheumatology Physician1124129747
  2. Devanshu Verma, MDRheumatology Physician1619350451

Verify Amy Zhang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C1-0013253
    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 Delaware license search

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76% fewer Medicare Part D claims than the average rheumatology physician in 2024

483 Medicare Part D claims for 75 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Amy Zhang483
  2. Specialty average1,978

Most prescribed

  1. Prednisone87 claims
  2. Hydroxychloroquine Sulfate72 claims
  3. Methotrexate72 claims
  4. Leflunomide27 claims
  5. Colchicine24 claims
  6. Alendronate Sodium22 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: $3,110.23

66 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amy Zhang$3,110.23
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Amy Zhang among 19 rheumatology physician records in Delaware

Amy Zhang, M.D. is one of 19 rheumatology physician records with a practice address in Delaware. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.

  • NPI issued2014 · 74% of these records are older, 16% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2014 · median 1994 among the 15 with a school on file
  • Record last updated2019 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Delaware

There are 19 rheumatology physician records in Delaware.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Sheerin Javed, M.D.Newark, DE 197131114963626
  2. Douglas Lienesch, MDNewark, DE 197131124129747
  3. Devanshu Verma, MDNewark, DE 197131619350451
  4. Catherine Teskin, DONewark, DE 197181770089112
  5. James Newman, MDWilmington, DE 198011689645319
  6. Susan Cowdery, MDWilmington, DE 198051336177666
  7. Shakaib Qureshi, MDWilmington, DE 198051821063108
  8. Madhavi Valiveti, MDWilmington, DE 198051841240850

Common questions

What is Amy Zhang, M.D.'s NPI number?

Amy Zhang, M.D.'s National Provider Identifier (NPI) is 1861811952, issued on Apr 16, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Amy Zhang, M.D. located?

The NPPES record lists a practice address at 4735 Ogletown Stanton RD Ste 2201, Newark, DE, 19713. Phone: (302) 623-4390. Providers update this record themselves, so call before visiting.

How can I verify Amy Zhang, M.D.'s license?

NPPES lists Delaware license number C1-0013253, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Amy Zhang, M.D. prescribe under Medicare Part D?

In 2024, Amy Zhang, M.D. had 483 Medicare Part D claims for 75 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.