Mark Baker, MD
NPI 1235197450 · Pediatrics Physician · Harrisburg, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Baker, MD is a Pediatrics Physician provider in Harrisburg, PA (NPI 1235197450).
Provider details
- NPI number
- 1235197450
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD038131E (PA)
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
20 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
- 2006-05-04
- Last updated
- 2009-09-18
Frequently asked questions
- What is Mark Baker's NPI number?
- Mark Baker's National Provider Identifier (NPI) is 1235197450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Baker's specialty?
- Mark Baker is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Baker located?
- Mark Baker's practice location on file with NPPES is 121 N Nyes Rd, Harrisburg, PA 17112-3247.
- What is Mark Baker's phone number?
- The practice phone number listed in the NPPES registry for Mark Baker is (800) 233-4082.
- Does Mark Baker accept Medicare?
- Mark Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Baker's NPI active?
- Yes — Mark Baker's NPI (1235197450) is active in the NPPES registry as of the last update on 2009-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.