Ahmad Hassan, MD
NPI 1427391598 · Psychiatry Physician · Princeton, NJ
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ahmad Hassan, MD is a Psychiatry Physician provider in Princeton, NJ (NPI 1427391598).
Provider details
- NPI number
- 1427391598
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA10269200 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
123 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 96 | $177 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $103 |
Typical Medicare-allowed amounts for these services range $103–$177 (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.
Practice location
Mailing address
Additional practice locations (3)
- 300 Clocktower Dr Ste 101Hamilton, NJ 08690-3010Phone: (888) 437-1610
- 1 Plainsboro RdPlainsboro, NJ 08536-1913Phone: (609) 853-7000
- 1345 River Bend DriveMarisela AdameDallas, TX 75247Phone: (214) 743-6139
Registry dates
- Enumerated
- 2013-03-27
- Last updated
- 2018-06-28
Frequently asked questions
- What is Ahmad Hassan's NPI number?
- Ahmad Hassan's National Provider Identifier (NPI) is 1427391598, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ahmad Hassan's specialty?
- Ahmad Hassan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ahmad Hassan located?
- Ahmad Hassan's practice location on file with NPPES is 905 Herrontown Rd, Princeton, NJ 08540.
- What is Ahmad Hassan's phone number?
- The practice phone number listed in the NPPES registry for Ahmad Hassan is (800) 242-2550.
- Does Ahmad Hassan accept Medicare?
- Ahmad Hassan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ahmad Hassan's NPI active?
- Yes — Ahmad Hassan's NPI (1427391598) is active in the NPPES registry as of the last update on 2018-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.