Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Patricia Greatorex, M.D.
Surgery Physician in Portland, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598728206
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Registry record
Entity type Individual (Type 1)
Name Dr. Patricia Greatorex
Credential M.D.
Sex Female
Practice address 887 Congress St, Suite 400, Portland, ME, 04102
Phone (207) 774-6368
Fax (207) 774-9338
Enumeration date Apr 11, 2006
Last updated in NPPES Nov 26, 2014
Taxonomy & licenses
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 |
|---|---|---|---|
| 027844 | Other | ME | ANTHEM |
| 306290099 | Medicaid | ME | - |
| 0753672001 | Other | ME | CIGNA |
| 099317 | Other | ME | ANTHEM |
| P00460355 | Other | ME | RR MEDICARE |
| 020052789 | Other | ME | RR MEDICARE |
| H41582 | Other | ME | HARVARD PILGRIM |
| 1537576 | Other | ME | AETNA |
| 2619338 | Other | ME | AETNA |
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.
Frequently asked questions
What specialty is Patricia Greatorex?
Patricia Greatorex is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Michael Curci Pediatric Surgery Physician · Portland, ME NPI 1548264054 Baird Mallory Pediatric Surgery Physician · Portland, ME NPI 1942204466 Georges Abourjaily Surgery Physician · Portland, ME NPI 1700874104 Paul Bloch Surgery Physician · Portland, ME NPI 1225026628 Robert Hawkins Surgery Physician · Portland, ME NPI 1215925631 Renee Chard Genetic Counselor (M.S.) · Portland, ME NPI 1275524928 George Russell Pediatric Gastroenterology Physician · Portland, ME NPI 1366423154 Jonathan Dreifus Surgery Physician · Portland, ME NPI 1235111048
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-26.