NPI Portal NPI Lookup & Verification

Ann L Eldridge, M.D.

Ann L Eldridge is a Dermatology Physician provider (Dermatology) practicing in Chatham, MA, registered in the NPPES registry with NPI 1023123791 since 2006. The credential MD stands for Doctor of Medicine. Practices at Ann L Eldridge MD PC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1023123791
Entity type Individual (Type 1)
Name Ann L Eldridge
Credential M.D.
Sex Female
Practice address Chatham, MA, 02633
Phone 5089450022
Enumeration date 2006-08-20
Last updated in NPPES 2007-09-20

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207N00000X Dermatology Physician Primary 76776 MA

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
3116352 Medicaid MA
J13466 Other MA BC/BS
Copy-ready billing details
Provider: Ann Eldridge, M.D.
NPI: 1023123791
Taxonomy: 207N00000X (Dermatology Physician)
Address: Chatham, MA, 02633

Other providers at this practice address

NPI Name Type Specialty Location
1174719488 Ann L Eldridge MD PC Organization Dermatology Physician Chatham, MA

Verify this record

Cross-check NPI 1023123791 against the authoritative CMS record: view Ann L Eldridge 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

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.
What specialty is Ann Eldridge?
Ann Eldridge is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-09-20.