NPPES file of Aug 9, 2026

Xiaofei Guo, MSN, FNP

Family Nurse Practitioner · Whittier, CA

Xiaofei Guo, MSN, FNP is a family nurse practitioner with a practice address in Whittier, California, and NPI 1265958623, issued on Aug 17, 2017. Check the license (California 95006776, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265958623
Name
Xiaofei Guo
Credential
MSN, FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95006776 CA
Self-reported in NPPES; status is on the state search
Practice location
8522 Painter Ave, Whittier, CA 90602
Phone
(562) 698-6266
Enumerated
Aug 17, 2017
Record last updated
Oct 27, 2023
Medicare enrollment
Enrolled (PECOS I20230203000713); 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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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 8522 Painter Ave

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

  1. Ken Chon, MDPediatric Adolescent Medicine Physician1386782167
  2. Jaime Pardo, M.D.Family Medicine Physician1346419348
  3. Eddie Wang, O.D.Optometrist1770633968
  4. Yu-Fei Wu, MDPediatric Adolescent Medicine Physician1356554448
  5. Stephanie Yang, O.D.Optometrist1447602511

Verify Xiaofei Guo 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 95006776    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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Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupWest Covina, CA

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

Xiaofei Guo among 16,966 family nurse practitioner records in California

Xiaofei Guo, MSN, FNP 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
  • Graduated2017 · median 2019 among the 6,793 with a school on file
  • Record last updated2023 · 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).

67 family nurse practitioner records list a practice address in Whittier

They are 67 of the 2,836 NPPES records with a practice address in Whittier, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Whittier → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Analine Almojera- De Leus, FNPWhittier, CA 906021841615895
  2. Deborah Bent, NPWhittier, CA 906021659469229
  3. Kristine Castaneda, NPWhittier, CA 906021245721323
  4. Patricia Cox, RNPWhittier, CA 906021457575144
  5. Estrella Guerrero, FNPWhittier, CA 906021407357866
  6. Lain Lee, NURSE PRACTITIONERWhittier, CA 906021538780218
  7. Rosemary Melesko, NPWhittier, CA 906021609120435
  8. Ekwy OkekeWhittier, CA 906021609416643

Common questions

What is Xiaofei Guo, MSN, FNP's NPI number?

Xiaofei Guo, MSN, FNP's National Provider Identifier (NPI) is 1265958623, issued on Aug 17, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Xiaofei Guo, MSN, FNP located?

The NPPES record lists a practice address at 8522 Painter Ave, Whittier, CA, 90602. Phone: (562) 698-6266. Providers update this record themselves, so call before visiting.

How can I verify Xiaofei Guo, MSN, FNP's license?

NPPES lists California license number 95006776, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.