Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALLISON LILIANA DIAZ
NPI 1164361572
Plastic Surgery in San Francisco, CA

Active since March 28, 2026
505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: October 31, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 31, 2026, Mar 28, 2026 (2 updates tracked since 2026).

About Allison Liliana Diaz NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALLISON LILIANA DIAZ (NPI 1164361572) is an individual plastic surgery provider in San Francisco, California, licensed in California (PTL22629) and active in the NPI registry since March 2026. She maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1164361572
Entity TypeIndividualFemale
Primary Taxonomy208200000X
Provider Legal NameALLISON LILIANA DIAZ
Location Address505 PARNASSUS AVESan Francisco, CA 94143-2204
Mailing Address195 Woodrow AveSouthport, CT 06890-1121 · (203) 856-0211
Sole ProprietorYes
Enumeration DateMarch 28, 2026
Last NPPES UpdateOctober 31, 20262 updates tracked since enumeration
NPPES CertifiedOctober 31, 2026
✔ NPI 1164361572 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPlastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208200000X
License✔ Licensed in CA · PTL22629
Definition
A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.
505 PARNASSUS AVE, San Francisco, CA 94143

Secondary Practice Location 1

Location 1550 1st AveNew York, NY 10016-6402 · Phone (212) 263-5290

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Neonatal)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Hospitalist
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Internal Medicine
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Internal Medicine (Geriatric Medicine)
505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143
Student in an Organized Health Care Education/Training Program
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Nurse Anesthetist, Certified Registered
505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Allison Diaz's NPI number?

The NPI number for Allison Diaz is 1164361572. It was assigned to this individual provider in the NPPES registry on March 28, 2026.

Where is Allison Diaz located?

Allison Diaz practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is Allison Diaz's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

When was this NPI record last updated?

The NPPES record for Allison Diaz was last updated on October 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.