NPPES file of Aug 9, 2026

Alan C. Schlaerth, M.D.

Gynecologic Oncology Physician · Arcadia, CA

Alan C. Schlaerth, M.D. is a gynecologic oncology physician with a practice address in Arcadia, California, and NPI 1043239049, issued on Jul 19, 2006. Check the license (California A72436, 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
1043239049
Name
Alan C. Schlaerth
Credential
M.D.
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License number
A72436 CA
Self-reported in NPPES; status is on the state search
Practice location
300 W Huntington Dr, Arcadia, CA 91007
Phone
(626) 898-8198
Enumerated
Jul 19, 2006
Record last updated
Jun 11, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(626) 898-8231
Medicare enrollment
Enrolled (PECOS I20061026000429); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1998
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 300 W Huntington Dr

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

  1. Katherine Agron, NPFamily Nurse Practitioner1538685334
  2. Raha Akhavan, M.D.Anesthesiology Physician1477577351
  3. Vincent Antosz, MDInternal Medicine Physician1831150135
  4. Loren Ayres, M.D.Anatomic Pathology & Clinical Pathology Physician1184693301
  5. Apryl Jann Bacalso, PTPhysical Therapist1124525340
  6. Rahtna Banerjee, M.D.Anesthesiology Physician1033430855

Verify Alan C. Schlaerth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A72436
    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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16% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024

163 Medicare Part D claims for 71 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. 36 claims were for opioids.

  1. Alan Schlaerth163
  2. Specialty average195

Most prescribed

  1. Ibuprofen38 claims
  2. Tramadol Hcl35 claims
  3. Estradiol11 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: $6,821.34

18 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alan Schlaerth$6,821.34
  2. Specialty average$6,387.20

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

Alan C. Schlaerth among 176 gynecologic oncology physician records in California

Alan C. Schlaerth, M.D. is one of 176 gynecologic oncology physician records with a practice address in California. 86% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1998 · median 2004 among the 131 with a school on file
  • Record last updated2014 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecologic Oncology Physician providers in California

There are 176 gynecologic oncology physician records in California.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Thanh Dellinger, M.D.Duarte, CA 910101073730891
  2. Ernest Han, MDDuarte, CA 910101639247950
  3. Stephen Lee, MDDuarte, CA 910101114185923
  4. Lorna Rodriguez, MD, PHDDuarte, CA 910101457436719
  5. Mihae Song, MDDuarte, CA 910101144665423
  6. Mark Wakabayashi, MDDuarte, CA 910101467547398
  7. Lynda Roman, M.D.Pasadena, CA 911051386649713
  8. Paul Lin, M.D.Pasadena, CA 911061083619100

Common questions

What is Alan C. Schlaerth, M.D.'s NPI number?

Alan C. Schlaerth, M.D.'s National Provider Identifier (NPI) is 1043239049, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alan C. Schlaerth, M.D. located?

The NPPES record lists a practice address at 300 W Huntington Dr, Arcadia, CA, 91007. Phone: (626) 898-8198. Providers update this record themselves, so call before visiting.

How can I verify Alan C. Schlaerth, M.D.'s license?

NPPES lists California license number A72436, 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 Alan C. Schlaerth, M.D. prescribe under Medicare Part D?

In 2024, Alan C. Schlaerth, M.D. had 163 Medicare Part D claims for 71 beneficiaries; the average among gynecologic oncology physician prescribers was 195. 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.