NPPES file of Aug 9, 2026

Nancy Oakley, CFNP

Family Nurse Practitioner · Chino Hills, CA

Nancy Oakley, CFNP is a family nurse practitioner with a practice address in Chino Hills, California, and NPI 1619902491, issued on Jul 11, 2006. Check the license (California NPF1575, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619902491
Name
Nancy Oakley
Credential
CFNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
NPF1575 CA
RN308842 CA
Self-reported in NPPES; status is on the state search
Practice location
2140 Grand Ave Ste 125, Chino Hills, CA 91709
Phone
(909) 630-7875
Enumerated
Jul 11, 2006
Record last updated
Feb 25, 2026
Fax
(909) 469-2107
Medicaid ID
1619902491 CA
Medicare enrollment
Enrolled (PECOS I20070601000542); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2140 Grand Ave Ste 125

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

  1. Carlos Baez, MDFamily Medicine Physician1225038961
  2. Jesse Cheung, MDFamily Medicine Physician1144757386
  3. Shwe Lew, DOFamily Medicine Physician1326733239
  4. Naheed Momand, D.O.Family Medicine Physician1043622921
  5. Erik Olsen, MDFamily Medicine Physician1639121015
  6. Jay Shah, DOSports Medicine (Family Medicine) Physician1023464336

Verify Nancy Oakley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NPF1575
    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
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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

65% fewer Medicare Part D claims than the average family nurse practitioner in 2024

458 Medicare Part D claims for 90 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Nancy Oakley458
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium51 claims
  2. Fluticasone Propionate29 claims
  3. Hydrochlorothiazide25 claims
  4. Losartan Potassium23 claims
  5. Metformin Hcl23 claims
  6. Levothyroxine Sodium20 claims

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.

Bills Medicare through one group practice

  1. Premier Family Medicine Associates, IncChino Hills, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nancy Oakley among 16,966 family nurse practitioner records in California

Nancy Oakley, CFNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 93% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated1984 · median 2019 among the 6,793 with a school on file
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 family nurse practitioner records list a practice address in Chino Hills

They are 22 of the 774 NPPES records with a practice address in Chino Hills, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Brandie Baque, APRNChino Hills, CA 917091285166744
  2. Maychin FongChino Hills, CA 917091932587599
  3. Richard GarciaChino Hills, CA 917091275931529
  4. Kim GeigerChino Hills, CA 917091710521844
  5. Jeanette Gumarang, ARNPChino Hills, CA 917091568717239
  6. Alex Kim, MSN, RN, FNP-CChino Hills, CA 917091376142976
  7. Sara Mahmood, FNPChino Hills, CA 917091790372829
  8. Artvin Christian Marquez, APRN, NP-CChino Hills, CA 917091871172767

Common questions

What is Nancy Oakley, CFNP's NPI number?

Nancy Oakley, CFNP's National Provider Identifier (NPI) is 1619902491, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Oakley, CFNP located?

The NPPES record lists a practice address at 2140 Grand Ave Ste 125, Chino Hills, CA, 91709. Phone: (909) 630-7875. Providers update this record themselves, so call before visiting.

How can I verify Nancy Oakley, CFNP's license?

NPPES lists California license number NPF1575, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Nancy Oakley, CFNP prescribe under Medicare Part D?

In 2024, Nancy Oakley, CFNP had 458 Medicare Part D claims for 90 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.