Registry data as of Aug 27, 2026

Nathaniel Denicola, MD

Gynecology Physician · Orange, CA

Nathaniel Denicola, MD is a gynecology physician with a practice address in Orange, California, and NPI 1225205651, issued on May 14, 2008. Check the license (California C170127, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1225205651
Name
Nathaniel Denicola
Credential
MD
Primary taxonomy
Gynecology Physician 207VG0400X
License number
C170127 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 456-8888
Enumerated
May 14, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 101 The City Dr S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Nathaniel Denicola in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C170127
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

92% fewer Medicare Part D claims than the average gynecology physician in 2024

25 Medicare Part D claims for 15 beneficiaries, against an average of 319 among the 1,929 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.

  1. Nathaniel Denicola25
  2. Specialty average319

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Gynecology Physician providers in California

There are 377 gynecology physician records in California.

Other gynecology physician records in California

  1. Ahmed Abdelaziz, MDSanta Maria, CA1790039733
  2. Keevan Abramson, MDFort Bragg, CA1851473177
  3. Robert Adams, MDMonterey, CA1316017601
  4. Naphthali Alinsod, M.D.Laguna Beach, CA1326055096
  5. Parichehr Allameh, M.D.Sylmar, CA1053434563
  6. Margarita Alvarado, M.D.San Francisco, CA1417974858
  7. Michal Amir, M.D.Beverly Hills, CA1982790598
  8. Malaika Amneus, M.D.Sylmar, CA1538379706
  9. Anna Anderson, MDMountain View, CA1457577801
  10. Donald Armstrong, M.D.Fullerton, CA1881672665

Common questions

What is Nathaniel Denicola, MD's NPI number?

Nathaniel Denicola, MD's National Provider Identifier (NPI) is 1225205651, issued on May 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel Denicola, MD located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-8888. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel Denicola, MD's license?

NPPES lists California license number C170127, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nathaniel Denicola, MD prescribe under Medicare Part D?

In 2024, Nathaniel Denicola, MD had 25 Medicare Part D claims for 15 beneficiaries; the average among gynecology physician prescribers was 319. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.