Thomas Marzili, DO
NPI 1558981597 · Internal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Marzili, DO is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1558981597).
Provider details
- NPI number
- 1558981597
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OS023767 (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
6 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
369 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 192 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 107 | $120 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 51 | $82 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 19 | $116 |
Typical Medicare-allowed amounts for these services range $80–$120 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 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)
- 1200 Old York Rd Ste 2bAbington, PA 19001-3720Phone: (215) 481-2222
Registry dates
- Enumerated
- 2020-04-20
- Last updated
- 2024-07-10
- Certified
- 2024-07-10
Frequently asked questions
- What is Thomas Marzili's NPI number?
- Thomas Marzili's National Provider Identifier (NPI) is 1558981597, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Marzili's specialty?
- Thomas Marzili is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Marzili located?
- Thomas Marzili's practice location on file with NPPES is 4190 City Ave, Philadelphia, PA 19131-1626.
- What is Thomas Marzili's phone number?
- The practice phone number listed in the NPPES registry for Thomas Marzili is (215) 871-6694.
- Does Thomas Marzili accept Medicare?
- Thomas Marzili is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Marzili's NPI active?
- Yes — Thomas Marzili's NPI (1558981597) is active in the NPPES registry as of the last update on 2024-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.