NPPES file of Aug 9, 2026

Anthony Gan

Pulmonary Disease Physician · Pomona, CA

Anthony Gan is a pulmonary disease physician with a practice address in Pomona, California, and NPI 1902223092, issued on Mar 26, 2014. Check the license (California 20A14345, 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
1902223092
Name
Anthony Gan
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
20A14345 CA
Self-reported in NPPES; status is on the state search
Practice location
1940 N Orange Grove Ave Ste A, Pomona, CA 91767
Phone
(909) 865-6900
Enumerated
Mar 26, 2014
Record last updated
May 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171031003306); accepts Medicare assignment
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 1940 N Orange Grove Ave Ste A

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

  1. Dallis Ngo, D.O., M.S.Pulmonary Disease Physician1174055149
  2. Derrick Raptis, M.D.Pulmonary Disease Physician1679749683
  3. Rakesh Sinha, M.B.B.S., M.D.Pulmonary Disease Physician1306006358

Verify Anthony Gan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A14345
    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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45% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

787 Medicare Part D claims for 137 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 73% of claims.

  1. Anthony Gan787
  2. Specialty average1,425

Most prescribed

  1. Trelegy Ellipta286 claims
  2. Albuterol Sulfate Hfa134 claims
  3. Breztri Aerosphere60 claims
  4. Breo Ellipta41 claims
  5. Montelukast Sodium40 claims
  6. Fluticasone Propionate31 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: $2,909.98

79 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Anthony Gan$2,909.98
  2. Specialty average$5,159.88

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

Bills Medicare through one group practice

  1. Chaparral Medical Group IncPomona, CA

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

Anthony Gan among 1,443 pulmonary disease physician records in California

Anthony Gan is one of 1,443 pulmonary disease physician records with a practice address in California. 84% 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 80% of them.

  • NPI issued2014 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2014 · median 2002 among the 1,061 with a school on file
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in California

There are 1,443 pulmonary disease physician records in California.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Nadir Eltahir, MDPomona, CA 917671053389338
  2. Joseph Gordon, M.D.Pomona, CA 917671811243652
  3. Alexander Kassar, MDPomona, CA 917671588008767
  4. Dallis Ngo, D.O., M.S.Pomona, CA 917671174055149
  5. Derrick Raptis, M.D.Pomona, CA 917671679749683
  6. Gurbinder Sadana, M.D.Pomona, CA 917671205898327
  7. Rohinder Sandhu, MDPomona, CA 917671902997174
  8. Rakesh Sinha, M.B.B.S., M.D.Pomona, CA 917671306006358

Common questions

What is Anthony Gan's NPI number?

Anthony Gan's National Provider Identifier (NPI) is 1902223092, issued on Mar 26, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Gan located?

The NPPES record lists a practice address at 1940 N Orange Grove Ave Ste A, Pomona, CA, 91767. Phone: (909) 865-6900. Providers update this record themselves, so call before visiting.

How can I verify Anthony Gan's license?

NPPES lists California license number 20A14345, 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 Anthony Gan prescribe under Medicare Part D?

In 2024, Anthony Gan had 787 Medicare Part D claims for 137 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.