Mark Zibelman, MD
NPI 1205934890 · Internal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Zibelman, MD is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1205934890).
Provider details
- NPI number
- 1205934890
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD015925E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
13 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 | $131 |
Typical Medicare-allowed amounts for these services range $131–$131 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 110 | 36 |
| Rosuvastatin Calcium | 95 | 30 |
| Levothyroxine Sodium | 79 | 25 |
| Metformin Hcl | 60 | 20 |
| Amlodipine Besylate | 57 | 20 |
| Hydrochlorothiazide | 38 | 16 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$76 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 8 Morton AveRidley Park, PA 19078-2210Phone: (610) 957-1770Fax: (610) 957-1774
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2019-09-04
Frequently asked questions
- What is Mark Zibelman's NPI number?
- Mark Zibelman's National Provider Identifier (NPI) is 1205934890, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Zibelman's specialty?
- Mark Zibelman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Zibelman located?
- Mark Zibelman's practice location on file with NPPES is 1818 E Passyunk Ave, Philadelphia, PA 19148-2128.
- What is Mark Zibelman's phone number?
- The practice phone number listed in the NPPES registry for Mark Zibelman is (215) 468-2553.
- Does Mark Zibelman accept Medicare?
- Mark Zibelman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Zibelman's NPI active?
- Yes — Mark Zibelman's NPI (1205934890) is active in the NPPES registry as of the last update on 2019-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.