Scott Gerald Ahl, D.O.
Endocrinology, Diabetes & Metabolism Physician · Huntington Beach, CA
Scott Gerald Ahl, D.O. is an endocrinology, diabetes & metabolism physician with a practice address in Huntington Beach, California, and NPI 1558674523, issued on Jul 20, 2010. Check the license (California 20A-12063, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Scott Gerald Ahl
- Credential
- D.O.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 20A-12063 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19582 Beach Blvd, Huntington Beach, CA 92648
- Phone
- (949) 791-3205
- Enumerated
- Jul 20, 2010
- Record last updated
- May 29, 2026
- Fax
- (714) 477-8024
- Medicare enrollment
- Enrolled (PECOS I20150916003199); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 19582 Beach Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pundari Chemitiganti, M.D.Gastroenterology Physician1033123971
- Kim Doan, M.D.Ophthalmology Physician1265402788
Verify Scott Gerald Ahl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A-12063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,589 Medicare Part D claims for 385 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Levothyroxine Sodium312 claims
- Ozempic160 claims
- Mounjaro155 claims
- Alendronate Sodium117 claims
- Synthroid111 claims
- Jardiance108 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $39.94
2 payments; by number, the most common kind was food and beverage; the largest payer was Kyowa Kirin, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Hoag ClinicSan Clemente, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Scott Gerald Ahl among 1,131 endocrinology, diabetes & metabolism physician records in California
Scott Gerald Ahl, D.O. is one of 1,131 endocrinology, diabetes & metabolism 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 2010, is newer than 68% of them.
- NPI issued2010 · 68% of these records are older, 28% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2010 · median 2003 among the 779 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Huntington Beach → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Robert NicoloffHuntington Beach, CA 926481982770350
- Paul Rosenblit, M.D.Huntington Beach, CA 926481699862102
- Jeffrey Punim, M.D.Huntington Beach, CA 926471962467258
- Eric Stevens, MDHuntington Beach, CA 926491215314430
- Gabrielle O'Connor, M.D.Laguna Beach, CA 926511720118961
- Kimvir Dhillon, MDLaguna Hills, CA 926531083673248
- Priyanka Krishnan, M.D.Laguna Hills, CA 926531497940712
- Ghasak Mahmood, M.D.Laguna Hills, CA 926531215116116
Common questions
What is Scott Gerald Ahl, D.O.'s NPI number?
Scott Gerald Ahl, D.O.'s National Provider Identifier (NPI) is 1558674523, issued on Jul 20, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Scott Gerald Ahl, D.O. located?
The NPPES record lists a practice address at 19582 Beach Blvd, Huntington Beach, CA, 92648. Phone: (949) 791-3205. Providers update this record themselves, so call before visiting.
How can I verify Scott Gerald Ahl, D.O.'s license?
NPPES lists California license number 20A-12063, 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 Scott Gerald Ahl, D.O. prescribe under Medicare Part D?
In 2024, Scott Gerald Ahl, D.O. had 2,589 Medicare Part D claims for 385 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Scott Gerald Ahl, D.O.'s MIPS final score?
The 2023 MIPS final score is 84.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.