Gary E Stack, MD
Gary E Stack is a Clinical Pathology/Laboratory Medicine Physician provider (Pathology) practicing in New Haven, CT, registered in the NPPES registry with NPI 1982687463 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1982687463 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Gary E Stack |
| Credential | MD |
| Sex | Male |
| Practice address | 800 HOWARD AVE, YALE PHYSICIANS BUILDING, New Haven, CT, 06519 |
| Phone | 2037852140 |
| Enumeration date | 2005-11-29 |
| Last updated in NPPES | 2009-07-27 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207ZB0001X | Blood Banking & Transfusion Medicine Physician | Secondary | 031831 | CT |
| 207ZP0105X | Clinical Pathology/Laboratory Medicine Physician | Primary | 031831 | CT |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 001318311 | Medicaid | CT | — |
Copy-ready billing details
Provider: Gary Stack, MD NPI: 1982687463 Taxonomy: 207ZP0105X (Clinical Pathology/Laboratory Medicine Physician) Address: 800 HOWARD AVE, YALE PHYSICIANS BUILDING, New Haven, CT, 06519
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1184621419 | John Fulkerson | Individual | Orthopaedic Surgery Physician | New Haven, CT |
| 1477541274 | Scott Gettinger | Individual | Medical Oncology Physician | New Haven, CT |
| 1871581686 | Antoinette Zollo Weinstein | Individual | Social Worker | New Haven, CT |
| 1104814888 | Francine Foss | Individual | Medical Oncology Physician | New Haven, CT |
| 1447248117 | Hari Deshpande | Individual | Interventional Cardiology Physician | New Haven, CT |
| 1952399263 | Susan Richman | Individual | Obstetrics & Gynecology Physician | New Haven, CT |
| 1538157730 | Kerry Russell | Individual | Cardiovascular Disease Physician | New Haven, CT |
| 1942298013 | Richard Bercik | Individual | Gynecology Physician | New Haven, CT |
Verify this record
Cross-check NPI 1982687463 against the authoritative CMS record: view Gary E Stack on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2009-07-27.