Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jaclyn Ballin Tracy

Dermatology Physician in Danville, CA · enumerated 2021.

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

National Provider Identifier

1598337487

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Registry record

Entity type Individual (Type 1)

Name Jaclyn Ballin Tracy

Sex Female

Practice address 3860 Blackhawk Rd Ste 140, Danville, CA, 94506

Phone (925) 837-6000

Enumeration date Jul 12, 2021

Last updated in NPPES Jan 8, 2026

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 59670 (CA) Primary

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

Is NPI 1598337487 active?

Yes, as of the latest NPPES snapshot, NPI 1598337487 is active (record last updated 2026-01-08).

How do I verify Jaclyn Tracy's NPI record?

Cross-check NPI 1598337487 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Daniel Wall Dermatology Physician · Danville, CA NPI 1508852013 Hayes Gladstone Dermatology Physician · Danville, CA NPI 1619003282 Hayes B. Gladstone, MD, PC. Dermatology Physician · Danville, CA NPI 1376947978 Amanda Macor Marriage & Family Therapist · Danville, CA NPI 1215385216 Gabriela Powers Marriage & Family Therapist · Danville, CA NPI 1427641687 Hayes B. Gladstone, MD, PC. Medical Specialty Clinic/Center · Danville, CA NPI 1447028063

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-08.