NPI registry status
Active
2026 NPPES data Oncology Registered Nurse NPI 1326421884 RN, NP
Verify on CMS → Gretchen Fulgencio, RN, NP
Oncology Registered Nurse in Berkeley, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 883 in Oncology Registered Nurse, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
673
Medicare Part D claims · 171 beneficiaries · Oncology Registered Nurse avg: 555
MIPS score
74.5/100
▼ 9 pts below national avg 83.1 · Mid-tier
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Gretchen Fulgencio, RN, NP reported a CMS MIPS final score of 74.5/100 - below the 83.1 national average - and filed 673 Medicare Part D claims in 2023.
- 74.5/100
- MIPS score · -9 vs avg
- 673
- Part D claims, 2023
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Gretchen Fulgencio, RN, NP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 12th percentile higher than 12% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Gretchen Fulgencio, RN, NP sits
This provider among oncology registered nurse peers
Across the 56 oncology registered nurse providers who report both Medicare Part D prescribing and a MIPS quality score, Gretchen Fulgencio, RN, NP writes more Part D claims than 77% of them and scores higher on MIPS quality than 13% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one oncology registered nurse peer from a representative sample of 55; the gold marker is Gretchen Fulgencio, RN, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Gretchen Fulgencio, RN, NP?
Below national averagePrimary specialty
Oncology Registered Nurse
Medicare Part D claims
673 21% vs specialty avg
MIPS final score
74.5/100 8.6 pts vs avg
Specialty distribution in California
How Oncology Registered Nurse compares to other specialties among California providers
Medicare quality performance, MIPS
Gretchen Fulgencio, RN, NP's 2023 MIPS final score plotted against the Oncology Registered Nurse national average
- MIPS Final Score
- 74.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Oncology Registered Nurse) - 74.5/100 vs national avg 83.1
How MIPS and board certification work
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 appears in the CMS NPPES registry as an 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.
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%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.5/100 for the 2023 performance year, compared with the national average of 83.1.
Oncology Registered Nurse is a narrow specialty nationwide, with 883 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
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.
What Gretchen Fulgencio, RN, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Letrozole
Letrozole
61 claims
- Gabapentin
Gabapentin
57 claims
- Anastrozole
Anastrozole
53 claims
- Ibrance
Ibrance
50 claims
- Exemestane
Exemestane
29 claims
- Alendronate Sodium
Alendronate Sodium
27 claims
- Famotidine
Famotidine
25 claims
- Lorazepam
Lorazepam
25 claims
| 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.
883
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.
Dr. Hamza Abid
MS, RN, CNS
Alameda, CA
Dr. Kristine Ahlberg
RN
Sacramento, CA
Dr. Nelli Akopyan
FNP
Encino, CA
Dr. Cherrie Lynn Almonte
RN
Stanford, CA
Dr. Robert Ankeny
RNC, OCN
Campbell, CA
Compare Oncology Registered Nurse nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Oncology Registered Nurse peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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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 74.5/100, Cost: 46.7. 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 883 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.