Mark Gullapalli, MD
NPI 1336291566 · Internal Medicine Physician · Modesto, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gullapalli, MD is a Internal Medicine Physician provider in Modesto, CA (NPI 1336291566).
Provider details
- NPI number
- 1336291566
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A97462 (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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 125 | 70 |
| Amlodipine Besylate | 54 | 37 |
| Losartan Potassium | 54 | 29 |
| Atenolol | 52 | 27 |
| Levothyroxine Sodium | 38 | 20 |
| Glipizide | 34 | 15 |
| Lisinopril | 32 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-17
- Last updated
- 2024-12-30
Frequently asked questions
- What is Mark Gullapalli's NPI number?
- Mark Gullapalli's National Provider Identifier (NPI) is 1336291566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gullapalli's specialty?
- Mark Gullapalli is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Gullapalli located?
- Mark Gullapalli's practice location on file with NPPES is 4601 Dale Rd, Modesto, CA 95356-9718.
- What is Mark Gullapalli's phone number?
- The practice phone number listed in the NPPES registry for Mark Gullapalli is (209) 557-1000.
- Does Mark Gullapalli accept Medicare?
- Mark Gullapalli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gullapalli's NPI active?
- Yes — Mark Gullapalli's NPI (1336291566) is active in the NPPES registry as of the last update on 2024-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.