NPPES file of Aug 9, 2026

Anne Rachel Serrano Guijo, N.P.

Family Nurse Practitioner · Walnut Creek, CA

Anne Rachel Serrano Guijo, N.P. is a family nurse practitioner with a practice address in Walnut Creek, California, and NPI 1659898484, issued on Aug 23, 2017. Check the license (California 95006074, 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
1659898484
Name
Anne Rachel Serrano Guijo
Credential
N.P.
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
95006074 CA
791060 CA
Self-reported in NPPES; status is on the state search
Practice location
710 S Broadway Ste 300, Walnut Creek, CA 94596
Phone
(925) 295-6783
Enumerated
Aug 23, 2017
Record last updated
Jan 11, 2022
Fax
(925) 295-3984
Medicare enrollment
Enrolled (PECOS I20220909002001); accepts 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.
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Also registered at 710 S Broadway Ste 300

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

  1. Kelly Bush, PSY.D.Psychologist1649321191
  2. Catherine Dionisio, PH.D.Clinical Psychologist1730365248
  3. Stephanie Gade, PHDPsychologist1871124222
  4. Matthew HaynesClinical Social Worker1225308711
  5. Meredith Porter, PSYDPsychologist1598077463
  6. Stewart Proctor, PH.D.Clinical Psychologist1336206721

Verify Anne Rachel Serrano Guijo 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 95006074
    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.

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87% fewer Medicare Part D claims than the average family nurse practitioner in 2024

174 Medicare Part D claims for 28 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Anne Rachel Guijo174
  2. Specialty average1,305

Most prescribed

  1. Buprenorphine-Naloxone112 claims
  2. Gabapentin25 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. Permanente Medical Group IncWalnut Creek, CA

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

Anne Rachel Serrano Guijo among 16,966 family nurse practitioner records in California

Anne Rachel Serrano Guijo, N.P. 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 2017, is newer than 40% of them.

  • NPI issued2017 · 40% of these records are older, 55% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2016 · median 2019 among the 6,793 with a school on file
  • Record last updated2022 · 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).

107 family nurse practitioner records list a practice address in Walnut Creek

They are 107 of the 6,170 NPPES records with a practice address in Walnut Creek, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Elizabeth Bronson, MSN,FNP CERTIFIEDWalnut Creek, CA 945961558436386
  2. Rachael Cabreira, MSN-FNP-CWalnut Creek, CA 945961013047257
  3. Maria Angela Dela Rima, NPWalnut Creek, CA 945961093441040
  4. Kathleen Garcia, FNPWalnut Creek, CA 945961447352307
  5. Manjit Ghangas, FNPWalnut Creek, CA 945961164568366
  6. Natalya Golovanov, NP-C, NDWalnut Creek, CA 945961508183468
  7. Janice Greenberg, R.N.,N.P.Walnut Creek, CA 945961942372297
  8. Sandra Ja'Chim, FNPWalnut Creek, CA 945961164757522

Common questions

What is Anne Rachel Serrano Guijo, N.P.'s NPI number?

Anne Rachel Serrano Guijo, N.P.'s National Provider Identifier (NPI) is 1659898484, issued on Aug 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Anne Rachel Serrano Guijo, N.P. located?

The NPPES record lists a practice address at 710 S Broadway Ste 300, Walnut Creek, CA, 94596. Phone: (925) 295-6783. Providers update this record themselves, so call before visiting.

How can I verify Anne Rachel Serrano Guijo, N.P.'s license?

NPPES lists California license number 95006074, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Anne Rachel Serrano Guijo, N.P. prescribe under Medicare Part D?

In 2024, Anne Rachel Serrano Guijo, N.P. had 174 Medicare Part D claims for 28 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.