Scott Ahl, D.O.
NPI 1558674523 · Endocrinology, Diabetes & Metabolism Physician · Huntington Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Scott Ahl, D.O. is a Endocrinology, Diabetes & Metabolism Physician provider in Huntington Beach, CA (NPI 1558674523).
Provider details
- NPI number
- 1558674523
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A-12063 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
640 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 338 | $136 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 93 | $179 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 73 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 58 | $194 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 42 | $98 |
| Hemoglobin A1c Level83036 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 312 | 94 |
| Semaglutidebrand: Ozempic | 160 | 39 |
| Tirzepatidebrand: Mounjaro | 155 | 29 |
| Alendronate Sodium | 117 | 29 |
| Levothyroxine Sodiumbrand: Synthroid | 111 | 29 |
| Empagliflozinbrand: Jardiance | 108 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-20
- Last updated
- 2026-05-29
- Certified
- 2026-05-29
Frequently asked questions
- What is Scott Ahl's NPI number?
- Scott Ahl's National Provider Identifier (NPI) is 1558674523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Scott Ahl's specialty?
- Scott Ahl is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Scott Ahl located?
- Scott Ahl's practice location on file with NPPES is 19582 Beach Blvd, Huntington Beach, CA 92648-5994.
- What is Scott Ahl's phone number?
- The practice phone number listed in the NPPES registry for Scott Ahl is (949) 791-3205.
- Does Scott Ahl accept Medicare?
- Scott Ahl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Scott Ahl's NPI active?
- Yes — Scott Ahl's NPI (1558674523) is active in the NPPES registry as of the last update on 2026-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.