Mark Bierhoff, MD
NPI 1568527372 · Gastroenterology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Bierhoff, MD is a Gastroenterology Physician provider in Philadelphia, PA (NPI 1568527372).
Provider details
- NPI number
- 1568527372
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD026056E (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
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 48 | 21 |
| Linaclotidebrand: Linzess | 38 | — |
| Famotidine | 25 | 14 |
| Mesalamine | 18 | — |
| Rifaximinbrand: Xifaxan | 18 | — |
| Dicyclomine Hcl | 14 | — |
| Ursodiol | 11 | — |
Medicare Part D only. 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
Registry dates
- Enumerated
- 2006-12-22
- Last updated
- 2011-03-21
Frequently asked questions
- What is Mark Bierhoff's NPI number?
- Mark Bierhoff's National Provider Identifier (NPI) is 1568527372, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Bierhoff's specialty?
- Mark Bierhoff is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Bierhoff located?
- Mark Bierhoff's practice location on file with NPPES is 2000 Grant Ave, Philadelphia, PA 19115-4378.
- What is Mark Bierhoff's phone number?
- The practice phone number listed in the NPPES registry for Mark Bierhoff is (215) 333-1776.
- Does Mark Bierhoff accept Medicare?
- Mark Bierhoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Bierhoff's NPI active?
- Yes — Mark Bierhoff's NPI (1568527372) is active in the NPPES registry as of the last update on 2011-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.