NPI Portal NPI Lookup & Verification

Dr. David A Denenholz, M.D.

Dr. David A Denenholz is a Specialist provider (Specialist) practicing in Pasadena, CA, registered in the NPPES registry with NPI 1801837331 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1801837331
Entity type Individual (Type 1)
Name Dr. David A Denenholz
Credential M.D.
Sex Male
Practice address 960 E GREEN ST, #330, Pasadena, CA, 91106
Phone 6264494207
Fax 6264490925
Enumeration date 2006-06-08
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
174400000X Specialist Primary G37998 CA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: David Denenholz, M.D.
NPI: 1801837331
Taxonomy: 174400000X (Specialist)
Address: 960 E GREEN ST, #330, Pasadena, CA, 91106

Other providers at this practice address

NPI Name Type Specialty Location
1063408623 Michael S Schwartz,MD A Professional Corporation Organization Otolaryngology/Facial Plastic Surgery Physician Pasadena, CA
1922094382 Michael Schwartz Individual Otolaryngology Physician Pasadena, CA
1407844632 Michael'S Pharmacy Organization Pharmacist Pasadena, CA
1043292485 Sandra Greenberg Individual Pediatrics Physician Pasadena, CA
1013993252 Pasadena Laser and Surgery Center A Medical Corporation Organization Ambulatory Surgical Clinic/Center Pasadena, CA
1437127099 Robert Seltzer Individual Specialist Pasadena, CA
1811965320 Craig Van Woerkom Individual Optometrist Pasadena, CA
1417926593 Sandy Gee Individual Optometrist Pasadena, CA

Verify this record

Cross-check NPI 1801837331 against the authoritative CMS record: view Dr. David A Denenholz on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1801837331 active?
Yes — as of the latest NPPES snapshot, NPI 1801837331 is active (record last updated 2007-07-08).
How do I verify David Denenholz's NPI record?
Cross-check NPI 1801837331 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.