Mark Pellegrino, MD
NPI 1124176912 · Geriatric Medicine (Family Medicine) Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Pellegrino, MD is a Geriatric Medicine (Family Medicine) Physician provider in Anaheim, CA (NPI 1124176912).
Provider details
- NPI number
- 1124176912
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G69878 (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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 94 | 21 |
| Levothyroxine Sodium | 79 | — |
| Omeprazole | 65 | 24 |
| Metformin Hcl | 58 | 11 |
| Amlodipine Besylate | 54 | 17 |
| Lactulose | 53 | 42 |
| Metoprolol Tartrate | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2021-11-29
Frequently asked questions
- What is Mark Pellegrino's NPI number?
- Mark Pellegrino's National Provider Identifier (NPI) is 1124176912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Pellegrino's specialty?
- Mark Pellegrino is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Pellegrino located?
- Mark Pellegrino's practice location on file with NPPES is 441 N Lakeview Ave, Anaheim, CA 92807-3028.
- What is Mark Pellegrino's phone number?
- The practice phone number listed in the NPPES registry for Mark Pellegrino is (888) 988-2800.
- Does Mark Pellegrino accept Medicare?
- Mark Pellegrino is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Pellegrino's NPI active?
- Yes — Mark Pellegrino's NPI (1124176912) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.