NPPES file of Aug 9, 2026

Gretchen Santos Fulgencio, RN, NP

Family Nurse Practitioner · Berkeley, CA

Gretchen Santos Fulgencio, RN, NP is a family nurse practitioner with a practice address in Berkeley, California, and NPI 1326421884, issued on Jul 2, 2015. Check the license (California 22811, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326421884
Name
Gretchen Santos Fulgencio
Credential
RN, NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
22811 CA
676689 CA
Self-reported in NPPES; status is on the state search
Practice location
3100 San Pablo Ave., Berkeley, CA 94702
Phone
(415) 476-3369
Enumerated
Jul 2, 2015
Record last updated
Mar 4, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(510) 985-5202
Medicare enrollment
Enrolled (PECOS I20150930001553); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 3100 San Pablo Ave.

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

  1. Natalie Marshall, M.D.Medical Oncology Physician1366445470
  2. Clifton Watt, M.D.Cardiovascular Disease Physician1104096551

Verify Gretchen Santos Fulgencio 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 22811
    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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59% fewer Medicare Part D claims than the average family nurse practitioner in 2024

530 Medicare Part D claims for 135 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.

  1. Gretchen Fulgencio530
  2. Specialty average1,305

Most prescribed

  1. Letrozole67 claims
  2. Verzenio51 claims
  3. Ibrance46 claims
  4. Gabapentin32 claims
  5. Anastrozole29 claims
  6. Kisqali22 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. University OF California San FranciscoSan Francisco, CA

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

76 family nurse practitioner records list a practice address in Berkeley

They are 76 of the 4,898 NPPES records with a practice address in Berkeley, and 16,966 family nurse practitioner records in California.

Other family nurse practitioner records in California

  1. Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
  2. Joshua AaronMission Hills, CA1477291805
  3. Orly Aaron, NPSan Francisco, CA1376912451
  4. Paris Gilbert Russ AaronSacramento, CA1871079111
  5. Tiffanne Aaronsen, FNPIndio, CA1568191807
  6. Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
  7. Frances Abad, FNPLos Angeles, CA1053504514
  8. Nnenna AbaezeLong Beach, CA1457820763
  9. Raymond Abagat, FNPTorrance, CA1306685821
  10. Ashley AbalCastaic, CA1740140698

Common questions

What is Gretchen Santos Fulgencio, RN, NP's NPI number?

Gretchen Santos Fulgencio, RN, NP's National Provider Identifier (NPI) is 1326421884, issued on Jul 2, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Gretchen Santos Fulgencio, RN, NP located?

The NPPES record lists a practice address at 3100 San Pablo Ave., Berkeley, CA, 94702. Phone: (415) 476-3369. Providers update this record themselves, so call before visiting.

How can I verify Gretchen Santos Fulgencio, RN, NP's license?

NPPES lists California license number 22811, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Gretchen Santos Fulgencio, RN, NP prescribe under Medicare Part D?

In 2024, Gretchen Santos Fulgencio, RN, NP had 530 Medicare Part D claims for 135 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Gretchen Santos Fulgencio, RN, NP's MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.