NPPES file of Aug 9, 2026

Thomas Terence Easter, M.D.

Gynecology Physician · Rancho Cucamonga, CA

Thomas Terence Easter, M.D. is a gynecology physician with a practice address in Rancho Cucamonga, California, and NPI 1922038595, issued on Jul 3, 2006. Check the license (California A41400, as entered in NPPES) on the Medical Board of California; 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
1922038595
Name
Thomas Terence Easter
Credential
M.D.
Primary taxonomy
Gynecology Physician 207VG0400X
License number
A41400 CA
Self-reported in NPPES; status is on the state search
Practice location
8263 Grove Ave Ste 204, Rancho Cucamonga, CA 91730
Phone
(909) 931-1033
Enumerated
Jul 3, 2006
Record last updated
Mar 30, 2023
Fax
(909) 981-8976
Medicare enrollment
Enrolled (PECOS I20070521000349); may accept 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.
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Also registered at 8263 Grove Ave Ste 204

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

  1. Madison Colbert, FNP-CFamily Nurse Practitioner1972392975
  2. Brian Spivack, M.D.Surgery Physician1295750305
  3. Sandra Torres, NPFamily Nurse Practitioner1326826645

Verify Thomas Terence Easter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A41400
    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 California license search

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2.9 times the Medicare Part D claims of the average gynecology physician in 2024

862 Medicare Part D claims for 222 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Thomas Easter862
  2. Specialty average299

Most prescribed

  1. Estradiol198 claims
  2. Progesterone137 claims
  3. Spironolactone62 claims
  4. Estradiol (Twice Weekly)58 claims
  5. Myrbetriq49 claims
  6. Premarin37 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: $1,601.66

16 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 1,398 providers of this specialty with any payment received $2,469.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Easter$1,601.66
  2. Specialty average$2,469.88

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

Thomas Terence Easter among 369 gynecology physician records in California

Thomas Terence Easter, M.D. is one of 369 gynecology physician records with a practice address in California. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 40% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1980 · median 1995 among the 141 with a school on file
  • Record last updated2023 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecology Physician providers in California

There are 369 gynecology physician records in California.

The 8 gynecology physician records with the nearest ZIP codes

  1. Duong Phung, M.D.Chino, CA 917101588725659
  2. Thomas Tam, M.D.Monterey Park, CA 917541770638033
  3. Karen Westermoe, MDSan Dimas, CA 917731366593949
  4. Arthur Escamillo, MDWest Covina, CA 917901437247400
  5. Akbar Omar, M.D.West Covina, CA 917901629137427
  6. Darryl Rodrigues, M.D.West Covina, CA 917901477582781
  7. Jennifer Anderson, M.D.Chula Vista, CA 919131831318229
  8. Thomas Reedy, MDJamul, CA 919351265871230

Common questions

What is Thomas Terence Easter, M.D.'s NPI number?

Thomas Terence Easter, M.D.'s National Provider Identifier (NPI) is 1922038595, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Terence Easter, M.D. located?

The NPPES record lists a practice address at 8263 Grove Ave Ste 204, Rancho Cucamonga, CA, 91730. Phone: (909) 931-1033. Providers update this record themselves, so call before visiting.

How can I verify Thomas Terence Easter, M.D.'s license?

NPPES lists California license number A41400, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Terence Easter, M.D. prescribe under Medicare Part D?

In 2024, Thomas Terence Easter, M.D. had 862 Medicare Part D claims for 222 beneficiaries; the average among gynecology physician prescribers was 299. 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.