2026 NPPES data Oncology Registered Nurse NPI 1326421884 RN, NP
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GRETCHEN FULGENCIO, RN, NP

Oncology Registered Nurse in BERKELEY, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
673
Medicare Part D claims · 171 beneficiaries · Oncology Registered Nurse avg: 555
MIPS score
74.4657/100
▼ 9 pts below national avg 83.1 · [object Object]
What the federal data reveals: GRETCHEN FULGENCIO, RN, NP is a Oncology Registered Nurse ([object Object]) practicing in BERKELEY, California with a Medicare Part D prescribing footprint of 673 claims across 171 beneficiaries . Their CMS MIPS Final Score of 74.4657/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: GRETCHEN FULGENCIO, RN, NP reported a CMS MIPS final score of 74.4657 out of 100, below the 83.1 national average, and filed 673 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

GRETCHEN FULGENCIO, RN, NP at a glance

Below national average

NPI registry status

Active

Issued 07/02/2015

NPI 1326421884

Primary specialty

Oncology Registered Nurse

Niche

857 US NPIs in this specialty

Medicare Part D claims

673 21% vs specialty avg

2023 prescription claims

Specialty avg: 555

MIPS final score

74.4657/100 8.634299999999996% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Oncology Registered Nurse compares to other specialties among California providers

California providers

Oncology Registered Nurse share within California

1. Oncology Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Oncology Registered Nurse share within California

Medicare quality performance — MIPS

GRETCHEN FULGENCIO, RN, NP's 2023 MIPS final score plotted against the Oncology Registered Nurse national average

Below national average
MIPS Final Score
74.4657/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Oncology Registered Nurse) — 74.4657/100 vs national avg 83.1

0%100%National avg83%74.5%
MIPS final score (Oncology Registered Nurse) — 74.4657/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

GRETCHEN FULGENCIO, RN, NP is a Oncology Registered Nurse provider practicing in BERKELEY, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: RN, NP. NPI: 1326421884. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

GRETCHEN FULGENCIO, RN, NP appears in the CMS NPPES registry as a Oncology Registered Nurse provider holding RN, NP credentials at 3100 SAN PABLO AVE., BERKELEY, CA, 94702, with a listed phone of (415) 476-3369. NPI 1326421884 was issued on 07/02/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FULGENCIO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 673 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, with an opioid prescribing rate of 6.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.4657/100 for the 2023 performance year, compared with the national average of 83.1.

Oncology Registered Nurse is a narrow specialty nationwide, with 857 enrolled providers across 50 states and an average of 555 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3100 SAN PABLO AVE.
BERKELEY, CA 94702

Provider Details

NPI 1326421884
Specialty Oncology Registered Nurse
Credentials RN, NP
Gender Female
NPI Issued 07/02/2015

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

74.4657
Final Score
Avg: 83.1
46.6814
Cost
76
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where GRETCHEN FULGENCIO, RN, NP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

UNIVERSITY OF CALIFORNIA SAN FRANCISCO
SAN FRANCISCO, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to GRETCHEN FULGENCIO, RN, NP. To verify GRETCHEN FULGENCIO, RN, NP's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

673
Total Claims
$1.2M
Total Drug Cost
171
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,093
Total Day Supply
29,915
Generic Drug Cost
$23K
Opioid Claims
43 (6.4% rate)
Antibiotic Claims
16

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.94

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Letrozole
61
Gabapentin
57
Anastrozole
53
Ibrance
Palbociclib
50
Exemestane
29
Alendronate Sodium
27
Famotidine
25
Lorazepam
25
Oxycodone Hcl
20
Omeprazole
19

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Oncology Registered Nurse Overview

How GRETCHEN FULGENCIO, RN, NP fits within the Oncology Registered Nurse landscape nationally.

857
Oncology Registered Nurse Providers in US
50
States with Oncology Registered Nurse
555
Avg Claims per Provider

GRETCHEN FULGENCIO, RN, NP's 673 claims are above the specialty average of 555.

Nearby Oncology Registered Nurse Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as FULGENCIO.

Compare Oncology Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is GRETCHEN FULGENCIO, RN, NP's specialty?
GRETCHEN FULGENCIO, RN, NP specializes in Oncology Registered Nurse and practices in BERKELEY, California. Credentials: RN, NP.
How much does GRETCHEN FULGENCIO, RN, NP prescribe under Medicare Part D?
In 2023, GRETCHEN FULGENCIO, RN, NP wrote 673 Medicare Part D claims totaling $1.2M in drug costs for 171 beneficiaries.
What is GRETCHEN FULGENCIO, RN, NP's Medicare quality score?
GRETCHEN FULGENCIO, RN, NP has a CMS MIPS Final Score of 74.4657/100, Cost: 46.6814. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GRETCHEN FULGENCIO, RN, NP located?
GRETCHEN FULGENCIO, RN, NP is located at 3100 SAN PABLO AVE., BERKELEY, CA, 94702. Phone: (415) 476-3369.
What is GRETCHEN FULGENCIO, RN, NP's NPI number?
GRETCHEN FULGENCIO, RN, NP's National Provider Identifier (NPI) is 1326421884, issued on 07/02/2015.
Does GRETCHEN FULGENCIO, RN, NP prescribe opioids?
Yes, GRETCHEN FULGENCIO, RN, NP had 43 opioid claims in 2023 with an opioid prescribing rate of 6.4%.
How many Oncology Registered Nurse providers are there in the US?
There are 857 Oncology Registered Nurse providers across 50 states in the US. The average Oncology Registered Nurse provider writes 555 Medicare Part D claims per year.
What drugs does GRETCHEN FULGENCIO, RN, NP prescribe most often?
Based on 2023 Medicare Part D data, GRETCHEN FULGENCIO, RN, NP's most frequently prescribed drugs include Letrozole, Gabapentin, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRETCHEN FULGENCIO, RN, NP accept Medicare?
GRETCHEN FULGENCIO, RN, NP appears in CMS Medicare data with 673 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRETCHEN FULGENCIO, RN, NP's credentials?
GRETCHEN FULGENCIO, RN, NP's NPI is 1326421884 with credentials RN, NP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology