Registry data as of Aug 27, 2026

Carol De Guzman, NP-C

Primary Care Nurse Practitioner · Orange, CA

Carol De Guzman, NP-C is a primary care nurse practitioner with a practice address in Orange, California, and NPI 1669805214, issued on Aug 19, 2013. Check the license with the California board that licenses this profession; 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
1669805214
Name
Carol De Guzman
Credential
NP-C
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(408) 679-3513
Enumerated
Aug 19, 2013
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 Carol De Guzman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find 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 →

97% fewer Medicare Part D claims than the average primary care nurse practitioner in 2024

41 Medicare Part D claims for 28 beneficiaries, against an average of 1,471 among the 5,882 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Carol De Guzman41
  2. Specialty average1,471

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.

One hospital or facility affiliation

  1. Regents OF The University OFOrange, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Primary Care Nurse Practitioner providers in California

There are 1,015 primary care nurse practitioner records in California.

Other primary care nurse practitioner records in California

  1. Pernian AbadiBakersfield, CA1801760814
  2. Ann AbrahamLong Beach, CA1447795182
  3. Angelica Acevedo, FNPParlier, CA1902239668
  4. Natalie Adame, PNPOrange, CA1750993622
  5. Pratikshya Adhikari, MSN, APRN, FNP-BCSacramento, CA1083118970
  6. Nicole Adona, DNP, FNP-C, CPNPSan Diego, CA1023784881
  7. Anita Adorador, FNPRedlands, CA1780654624
  8. Warrick Africa, NPMountain View, CA1902413404
  9. Jessica Aguilar, NURSE PRACTITIONERLos Angeles, CA1508330390
  10. Gifty Aidoo, NPModesto, CA1376883256

Common questions

What is Carol De Guzman, NP-C's NPI number?

Carol De Guzman, NP-C's National Provider Identifier (NPI) is 1669805214, issued on Aug 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Carol De Guzman, NP-C located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (408) 679-3513. Providers update this record themselves, so call before visiting.

How can I verify Carol De Guzman, NP-C's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Carol De Guzman, NP-C prescribe under Medicare Part D?

In 2024, Carol De Guzman, NP-C had 41 Medicare Part D claims for 28 beneficiaries; the average among primary care nurse practitioner prescribers was 1,471. 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.