Sajjad Hassan, MD
NPI 1174999197 · Clinical Pathology/Laboratory Medicine Physician · Springfield, MA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sajjad Hassan, MD is a Clinical Pathology/Laboratory Medicine Physician provider in Springfield, MA (NPI 1174999197).
Provider details
- NPI number
- 1174999197
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 290990 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,580 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) |
|---|---|---|
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 1,202 | $17 |
| Protein Measurement, Serum84165 | 1,068 | $17 |
| Immunologic Analysis Technique on Body Fluid, Other Fluids With Concentration86335 | 143 | $17 |
| Mechanical Separation of Plasma From Blood36514 | 94 | $91 |
| Protein Measurement, Body Fluid84166 | 73 | $17 |
Typical Medicare-allowed amounts for these services range $17–$91 (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
Registry dates
- Enumerated
- 2015-08-13
- Last updated
- 2022-06-30
- Certified
- 2022-06-30
Frequently asked questions
- What is Sajjad Hassan's NPI number?
- Sajjad Hassan's National Provider Identifier (NPI) is 1174999197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sajjad Hassan's specialty?
- Sajjad Hassan is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sajjad Hassan located?
- Sajjad Hassan's practice location on file with NPPES is 759 Chestnut St # D1170, Springfield, MA 01107-1619.
- What is Sajjad Hassan's phone number?
- The practice phone number listed in the NPPES registry for Sajjad Hassan is (413) 794-7455.
- Does Sajjad Hassan accept Medicare?
- Sajjad Hassan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sajjad Hassan's NPI active?
- Yes — Sajjad Hassan's NPI (1174999197) is active in the NPPES registry as of the last update on 2022-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.