Leo Zacharias, MD
NPI 1346221777 · Internal Medicine Physician · Darby, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Zacharias, MD is a Internal Medicine Physician provider in Darby, PA (NPI 1346221777).
Provider details
- NPI number
- 1346221777
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD050467 (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
20 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
569 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 | 280 | $131 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 106 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 82 | $132 |
| Administration of Influenza Virus VaccineG0008 | 52 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 145 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 932 | 279 |
| Amlodipine Besylate | 882 | 266 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 494 | 117 |
| Losartan Potassium | 425 | 124 |
| Metformin Hcl | 390 | 108 |
| Gabapentin | 390 | 118 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,452 across 72 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)
- 501 S 54th StPhiladelphia, PA 19143-1900Phone: (215) 748-9707Fax: (215) 748-9708
Registry dates
- Enumerated
- 2005-11-11
- Last updated
- 2021-05-19
- Certified
- 2021-05-19
Frequently asked questions
- What is Leo Zacharias's NPI number?
- Leo Zacharias's National Provider Identifier (NPI) is 1346221777, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Zacharias's specialty?
- Leo Zacharias is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Zacharias located?
- Leo Zacharias's practice location on file with NPPES is 1501 Lansdowne Ave Fl Mob1, Darby, PA 19023-1333.
- What is Leo Zacharias's phone number?
- The practice phone number listed in the NPPES registry for Leo Zacharias is (610) 534-6310.
- Does Leo Zacharias accept Medicare?
- Leo Zacharias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Zacharias's NPI active?
- Yes — Leo Zacharias's NPI (1346221777) is active in the NPPES registry as of the last update on 2021-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.