Physician Profile
Sajjad Hassan, MD
Unclaimed ProfileAbout Dr. Hassan
Based in Springfield, MA, Sajjad Hassan, MD is listed in the NPI registry under pathology. Sajjad is also listed as specializing in pathology — clinical. Medicare claims data shows Sajjad provided 2,580 services to 1,588 patients. The services billed most often include immunologic analysis technique on serum (immunofixation), protein measurement, serum, and immunologic analysis technique on body fluid, other fluids with concentration. NPI 1174999197 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (413) 794-7455
- Email not available
Practice Locations
759 CHESTNUT ST # D1170
Springfield, MA 01107
Conditions Evaluated or Diagnosed
Within Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Autoimmune & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
- Bleeding Disorders
- Blood Clotting Gene Mutation
- Iron-deficiency anemia
- Leukemia
- Lymphoma
- Multiple Myeloma
- Sickle cell disease
Cancer
- Bladder cancer
- Bone tumors
- Brain tumor
- Breast cancer
- Cervical cancer
- Colon cancer
- Endometrial cancer
- Kidney cancer
- Liver cancer
- Lung cancer
- Oral cavity cancer
- Ovarian cancer
- Pancreatic cancer
- Prostate cancer
- Soft-tissue sarcoma
- Stomach cancer
- Testicular cancer
- Thyroid cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Procedures & services
Autopsy & Forensic
Blood Tests
- Blood Clotting Tests
- Blood Type Test
- Cholesterol screening
- Complete Blood Count
- Comprehensive Metabolic Panel
- Hemoglobin A1c Test
- Iron Level Blood Test
- Thyroid Blood Test
Cytology
Cytology & Screening
- Fine-needle aspiration of a neck mass
- Human papillomavirus testing
- Pap Smear Test
- Thyroid Nodule Biopsy Review
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
- Cardiac enzyme blood test
- Pregnancy blood test
- Sed rate inflammation test
- Testosterone blood test
- Vitamin D blood test
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
- Bone Marrow Biopsy Interpretation
- Breast Biopsy Analysis
- Cervical biopsy lab review
- Colon Polyp Testing
- Kidney Biopsy Examination
- Liver Biopsy Examination
- Lung biopsy lab review
- Lymph Node Biopsy Analysis
- Oral biopsy lab review
- Prostate Biopsy Analysis
- Skin Biopsy Lab Review
- Stomach biopsy lab review
- Uterine biopsy lab review
Procedures Most Often Billed to Medicare
2,580 services · 1,588 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Mechanical separation of plasma from blood | Procedure | 36514 |
94 | More often than most peers in Pathology |
| Immunologic analysis technique on serum (immunofixation) | Lab test | 86334 |
1,202 | More often than most peers in Pathology |
| Protein measurement, serum | Lab test | 84165 |
1,068 | More often than most peers in Pathology |
| Immunologic analysis technique on body fluid, other fluids with concentration | Lab test | 86335 |
143 | More often than most peers in Pathology |
| Protein measurement, body fluid | Lab test | 84166 |
73 | As often as other peers in Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other pathologists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pathologists in Springfield 7
Same specialty, same city.
More connections — 19 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Mechanical separation of plasma from blood 3
Providers in MA who bill this service to Medicare most often.
Common questions
What is Dr. Hassan's specialty?
Dr. Hassan is a pathologist in Springfield, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Where can I find Dr. Hassan?
Dr. Hassan is listed at 759 Chestnut St # D1170, Springfield, MA 01107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Hassan?
The number on file is (413) 794-7455. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Hassan?
Dr. Hassan's National Provider Identifier is 1174999197. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Hassan's medical education?
Dr. Hassan attended Other, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hassan have?
Dr. Hassan has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Hassan known for?
According to Medicare billing data, Dr. Hassan performs procedures including mechanical separation of plasma from blood, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hassan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hassan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.