Physician Profile
Jeffrey S. Warren, MD is a healthcare provider in Ann Arbor, MI specializing in pathology. Jeffrey trained at Ohio State University College of Medicine, graduating in 1980. Jeffrey is also listed as specializing in anatomic & clinical pathology. Medicare claims data shows Jeffrey provided 2,285 services to 1,712 patients. The services billed most often include protein measurement, serum, immunologic analysis technique on serum (immunofixation), and protein measurement, body fluid.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
1500 EAST MEDICAL CENTER DR 2ND FLOOR UNIVERSITY HOSPITAL RECP PATHOLOGY
Ann Arbor, MI 48109
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
2,285 services · 1,712 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Protein measurement, serum | Lab test | 84165 |
988 | More often than most peers in Pathology |
| Immunologic analysis technique on serum (immunofixation) | Lab test | 86334 |
588 | More often than most peers in Pathology |
| Protein measurement, body fluid | Lab test | 84166 |
216 | More often than most peers in Pathology |
| Protein measurement, serum | Lab test | 84165 |
123 | More often than most peers in Pathology |
| Immunologic analysis technique on serum (immunofixation) | Lab test | 86334 |
99 | More often than most peers in Pathology |
| Screening test for antibody to noninfectious agent | Lab test | 86255 |
79 | |
| Immunologic analysis technique on body fluid, other fluids with concentration | Lab test | 86335 |
73 | More often than most peers in Pathology |
| Protein measurement, body fluid | Lab test | 84166 |
46 | More often than most peers in Pathology |
| Screening test for antibody to noninfectious agent | Lab test | 86255 |
35 | |
| Immunologic analysis technique on body fluid, other fluids with concentration | Lab test | 86335 |
21 | More often than most peers in Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Warren is a pathologist in Ann Arbor, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Dr. Warren is listed at 1500 East Medical Center Dr 2Nd Floor University Hospital Recp Pathology, Ann Arbor, MI 48109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (800) 862-7284. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Warren's National Provider Identifier is 1912089897. 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. Warren attended Ohio State University College of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
Dr. Warren has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Warren 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. Warren. 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.