Physician Profile
Based in New York, NY, Marc K. Rosenblum, MD is listed in the NPI registry under pathology. Marc graduated from University of Miami, Lm Miller School of Medicine in 1979. Medicare claims data shows Marc provided 2,942 services to 1,781 patients. The services billed most often include special stained specimen slides to examine tissue, each additional procedure, pathology examination of tissue using a microscope, moderately high complexity, and pathology examination of tissue using a microscope, intermediate complexity.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1275 YORK AVE
New York, NY 10021
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.
Autoimmune & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
Cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Autopsy & Forensic
Blood Tests
Cytology
Cytology & Screening
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
2,942 services · 1,781 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
565 | More than most peers in Pathology |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
302 | More than most peers in Pathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
296 | As often as other peers in Pathology |
| Pathology cytologic examination of specimen during surgery, initial site | Lab test | 88333 |
222 | More than most peers in Pathology |
| Surgical pathology consultation and report on referred slides prepared elsewhere | Lab test | 88321 |
174 | More than most peers in Pathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
160 | More often than most peers in Pathology |
| Cell examination of specimen, selective cellular enhancement technique | Lab test | 88112 |
157 | More often than most peers in Pathology |
| Evaluation of fine needle aspirate with interpretation and report | Lab test | 88173 |
146 | More often than most peers in Pathology |
| Microscopic genetic analysis of tumor, manual | Lab test | 88360 |
140 | More often than most peers in Pathology |
| Evaluation of fine needle aspirate | Lab test | 88172 |
137 | More than most peers in Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Rosenblum is a pathologist in New York, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Dr. Rosenblum is listed at 1275 York Ave, New York, NY 10021. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (212) 639-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Rosenblum's National Provider Identifier is 1831179647. 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
Dr. Rosenblum attended University of Miami, Lm Miller School of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
Dr. Rosenblum has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Rosenblum the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Rosenblum. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.