Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carol L Isaacs, MD

Q: What is the NPI number for Carol Isaacs?

The National Provider Identifier (NPI) for Carol Isaacs is 1962508960, a Type 1 (individual) record in the CMS NPPES registry.

Dermatology Physician in St Helena, CA · enumerated 2006.

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

National Provider Identifier

1962508960

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Registry record

Entity type Individual (Type 1)

Name Carol L Isaacs

Credential MD

Sex Female

Practice address 10 Woodland Rd, Lloyd Bldg Ste 501, St Helena, CA, 94574

Phone (707) 963-5450

Fax (707) 963-6543

Enumeration date Sep 16, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License G53773 (CA) Primary

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
00G537730	Medicaid	CA	-

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 is the NPI number for Carol Isaacs?

The National Provider Identifier (NPI) for Carol Isaacs is 1962508960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Carol Isaacs practice?

The practice location on file with NPPES is in St Helena, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

William Duge Diagnostic Radiology Physician · Saint Helena, CA NPI 1275535700 Randy P. Hausted M.D. Inc Anatomic Pathology & Clinical Pathology Physician · St. Helena, CA NPI 1548254139 Hirofumi Hashimoto Internal Medicine Physician · Saint Helena, CA NPI 1104812585 David Carelock Certified Registered Nurse Anesthetist · Saint Helena, CA NPI 1790773596 St. Helena Hospital General Acute Care Hospital · Saint Helena, CA NPI 1720078082 Ari Umutyan Medical Oncology Physician · Saint Helena, CA NPI 1275516171 Edward Stump Emergency Medicine Physician · Saint Helena, CA NPI 1619950193 Dan Clay Emergency Medicine Physician · Saint Helena, CA NPI 1033192547

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.