NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Isaac Martin Bromberg, MD

Hospice and Palliative Medicine (Emergency Medicine) Physician in Rockport, ME · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1710957428

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Registry record

Entity type Individual (Type 1)
Name Dr. Isaac Martin Bromberg
Credential MD
Sex Male
Practice address 4 Glen Cove Dr Ste 101, Rockport, ME, 04856
Phone (207) 301-3090
Fax (207) 301-5295
Enumeration date Jan 25, 2006
Last updated in NPPES Jul 22, 2026

Taxonomy & licenses

207PH0002X Hospice and Palliative Medicine (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License MD30570 (ME) Primary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD30570 (ME) Secondary
207PH0002X Hospice and Palliative Medicine (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 94397 (MT) Secondary
207PH0002X Hospice and Palliative Medicine (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 223813 (MA) Secondary
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
1710957428 Medicaid MA -

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 → Validate an NPI →

Frequently asked questions

What specialty is Isaac Bromberg?
Isaac Bromberg is registered in NPPES with the primary taxonomy of Hospice and Palliative Medicine (Emergency Medicine) 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-22.