Andrew Karas, M.D.
NPI 1306291562 · Internal Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Karas, M.D. is a Internal Medicine Physician provider in Pasadena, CA (NPI 1306291562).
Provider details
- NPI number
- 1306291562
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A158010 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 24 | 23 |
| Atorvastatin Calcium | 24 | 21 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 14 | 12 |
| Furosemide | 13 | 13 |
| Carvedilol | 13 | 12 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 12 | 11 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 400 N Pepper AveColton, CA 92324-1801Phone: (909) 580-6343
Registry dates
- Enumerated
- 2016-04-25
- Last updated
- 2025-12-27
- Certified
- 2025-12-27
Frequently asked questions
- What is Andrew Karas's NPI number?
- Andrew Karas's National Provider Identifier (NPI) is 1306291562, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Karas's specialty?
- Andrew Karas is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Karas located?
- Andrew Karas's practice location on file with NPPES is 100 W California Blvd, Pasadena, CA 91105-3010.
- What is Andrew Karas's phone number?
- The practice phone number listed in the NPPES registry for Andrew Karas is (626) 795-2244.
- Does Andrew Karas accept Medicare?
- Andrew Karas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Karas's NPI active?
- Yes — Andrew Karas's NPI (1306291562) is active in the NPPES registry as of the last update on 2025-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.