Mark Fabi, M.D.
NPI 1356479604 · Psychiatry Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Fabi, M.D. is a Psychiatry Physician provider in Philadelphia, PA (NPI 1356479604).
Provider details
- NPI number
- 1356479604
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD036925E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 106 | 24 |
| Alprazolam | 86 | 11 |
| Clonazepam | 78 | 17 |
| Gabapentin | 64 | 12 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 41 | — |
| Aripiprazole | 40 | — |
| Diazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
Registry dates
- Enumerated
- 2007-03-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Fabi's NPI number?
- Mark Fabi's National Provider Identifier (NPI) is 1356479604, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fabi's specialty?
- Mark Fabi is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Fabi located?
- Mark Fabi's practice location on file with NPPES is 834 Chestnut St, Philadelphia, PA 19107-5127.
- What is Mark Fabi's phone number?
- The practice phone number listed in the NPPES registry for Mark Fabi is (215) 625-3601.
- Does Mark Fabi accept Medicare?
- Mark Fabi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Fabi's NPI active?
- Yes — Mark Fabi's NPI (1356479604) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.