Abraham Harn, DO
NPI 1003337122 · Internal Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Abraham Harn, DO is a Internal Medicine Physician provider in Anaheim, CA (NPI 1003337122).
Provider details
- NPI number
- 1003337122
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A17487 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
897 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 501 | $122 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 236 | $178 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 131 | $119 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 15 | $84 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $133 |
Typical Medicare-allowed amounts for these services range $84–$178 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 40 | 39 |
| Atorvastatin Calcium | 39 | 35 |
| Ciprofloxacin Hcl | 39 | 39 |
| Furosemide | 29 | 26 |
| Methylprednisolone | 26 | 25 |
| Pantoprazole Sodium | 22 | 18 |
| Metoprolol Tartrate | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-28
- Last updated
- 2020-07-02
- Certified
- 2020-07-02
Frequently asked questions
- What is Abraham Harn's NPI number?
- Abraham Harn's National Provider Identifier (NPI) is 1003337122, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Abraham Harn's specialty?
- Abraham Harn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Abraham Harn located?
- Abraham Harn's practice location on file with NPPES is 1211 W La Palma Ave Ste 404, Anaheim, CA 92801-2806.
- What is Abraham Harn's phone number?
- The practice phone number listed in the NPPES registry for Abraham Harn is (714) 772-8282.
- Does Abraham Harn accept Medicare?
- Abraham Harn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Abraham Harn's NPI active?
- Yes — Abraham Harn's NPI (1003337122) is active in the NPPES registry as of the last update on 2020-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.