NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1356479604 M.D.
Verify on CMS → Mark Fabi, M.D.
Psychiatry Physician in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 53,104 in Psychiatry Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 76 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$19.71
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Fabi, M.D. filed 1,246 Medicare Part D claims in 2023 as a Psychiatry Physician in Philadelphia, Pennsylvania, prescribing 88% generic.
- 1K
- Part D claims, 2023
- 88%
- generic prescribing
- $19.71
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Mark Fabi, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,246 Top 22% higher than 78% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Mark Fabi, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Fabi, M.D.?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
1,246 20% vs specialty avg
Specialty distribution in Pennsylvania
How Psychiatry Physician compares to other specialties among Pennsylvania providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Psychiatry Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Mark Fabi, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 834 CHESTNUT ST, Philadelphia, PA, 19107, with a listed phone of (215) 625-3601. NPI 1356479604 was issued on 03/01/2007.
Medicare Part D records for calendar year 2023 show 1,246 prescription claims written by this provider, covering 76 Medicare beneficiaries and totaling roughly $221K in drug spend, split 12% brand-name and 88% generic by claim count.
Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1356479604 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 03/01/2007 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mark Fabi, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$20
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Mark Fabi, M.D.. To verify Mark Fabi, M.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Mark Fabi, M.D. - brand share 12.0%
Psychiatry Physician average
12% brand-name claims vs 88% generic, on 1,246 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,246
Total Claims
$221K
Total Drug Cost
76
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,878
- Total Day Supply
- 56,077
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $171K
- Generic Drug Cost
- $50K
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 1.13
- Gender Split
- 50% female / 50% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Fabi, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clonazepam
Clonazepam
122 claims
- Bupropion Xl
Bupropion Xl
98 claims
- Alprazolam
Alprazolam
85 claims
- Gabapentin
Gabapentin
50 claims
- Diazepam 41
Diazepam
41 claims
- Quetiapine Fumarate 36
Quetiapine Fumarate
36 claims
- Trazodone Hcl 36
Trazodone Hcl
36 claims
- Venlafaxine Hcl Er 36
Venlafaxine Hcl Er
36 claims
| Drug | Claims |
|---|---|
| Clonazepam | 122 |
| Bupropion Xl Bupropion Hcl | 98 |
| Alprazolam | 85 |
| Gabapentin | 50 |
| Diazepam | 41 |
| Quetiapine Fumarate | 36 |
| Trazodone Hcl | 36 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 36 |
| Escitalopram Oxalate | 34 |
| Bupropion Hcl Sr Bupropion Hcl | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Mark Fabi, M.D. fits within the Psychiatry Physician landscape nationally.
53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider
Mark Fabi, M.D.'s 1,246 claims are above the specialty average of 1,038.
Nearby Psychiatry Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Fabi.
Dr. Raja Abbas
M.D.
Lehighton, PA
Dr. Saleha Abbas
M.D.
Upland, PA
Dr. David Abel
MD
Doylestown, PA
Dr. Rolf Abel
MD
Wilkes Barre, PA
Dr. Dara Abraham
D.O
Philadelphia, PA
Compare Psychiatry Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Psychiatry Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Mark Fabi, M.D.'s specialty? ▼
Mark Fabi, M.D. specializes in Psychiatry Physician and practices in Philadelphia, Pennsylvania. Credentials: M.D..
How much does Mark Fabi, M.D. prescribe under Medicare Part D? ▼
In 2023, Mark Fabi, M.D. wrote 1,246 Medicare Part D claims totaling $221K in drug costs for 76 beneficiaries.
Where is Mark Fabi, M.D. located? ▼
Mark Fabi, M.D. is located at 834 CHESTNUT ST, Philadelphia, PA, 19107. Phone: (215) 625-3601.
What is Mark Fabi, M.D.'s NPI number? ▼
Mark Fabi, M.D.'s National Provider Identifier (NPI) is 1356479604, issued on 03/01/2007.
Does Mark Fabi, M.D. prescribe more brand-name or generic drugs? ▼
Mark Fabi, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $171K in brand drug costs.
How many Psychiatry Physician providers are there in the US? ▼
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does Mark Fabi, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Fabi, M.D.'s most frequently prescribed drugs include Clonazepam, Bupropion Xl, Alprazolam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Fabi, M.D. accept Medicare? ▼
Mark Fabi, M.D. appears in CMS Medicare data with 1,246 Part D claims and 76 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Fabi, M.D.'s credentials? ▼
Mark Fabi, M.D.'s NPI is 1356479604 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.