Mark Patuszynski, MD
NPI 1841386083 · Hospitalist Physician · Loma Linda, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Patuszynski, MD is a Hospitalist Physician provider in Loma Linda, CA (NPI 1841386083).
Provider details
- NPI number
- 1841386083
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C53438 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2025-05-11
- Certified
- 2025-05-11
Frequently asked questions
- What is Mark Patuszynski's NPI number?
- Mark Patuszynski's National Provider Identifier (NPI) is 1841386083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Patuszynski's specialty?
- Mark Patuszynski is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Patuszynski located?
- Mark Patuszynski's practice location on file with NPPES is 11201 Benton St, Loma Linda, CA 92357-1000.
- What is Mark Patuszynski's phone number?
- The practice phone number listed in the NPPES registry for Mark Patuszynski is (909) 825-7084.
- Does Mark Patuszynski accept Medicare?
- Mark Patuszynski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Patuszynski's NPI active?
- Yes — Mark Patuszynski's NPI (1841386083) is active in the NPPES registry as of the last update on 2025-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.