Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gerald F. Foster, MD
Dermatology Physician in Boston, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912916644
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Registry record
Entity type Individual (Type 1)
Name Gerald F. Foster
Credential MD
Sex Female
Practice address 147 Milk St, Boston, MA, 02109
Phone (617) 654-7240
Fax (617) 654-7177
Enumeration date Aug 5, 2006
Last updated in NPPES May 31, 2011
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 |
|---|---|---|---|
| P00136859 | Other | MA | MEDICARE RAILROAD |
| 0014517 | Other | MA | NEIGHBORHOOD HEALTH PLAN |
| 3179559 | Medicaid | MA | - |
| 796019 | Other | MA | TUFTS HEALTH PLAN |
| PD137 | Other | MA | HARVARD PILGRIM |
| 8585842-002 | Other | MA | CIGNA |
| J22450 | Other | MA | BLUE CROSS |
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 Gerald Foster?
Gerald Foster 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.
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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-31.