REBECCA PFEIFER-ROSENBLUM
Family Nurse Practitioner in RICHMOND, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
REBECCA PFEIFER-ROSENBLUM filed 2,094 Medicare Part D claims in 2023 as a Family Nurse Practitioner in RICHMOND, California.
- 2K
- 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.
REBECCA PFEIFER-ROSENBLUM's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
2,094 Top 16% higher than 84% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about REBECCA PFEIFER-ROSENBLUM?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in California
How Family Nurse Practitioner compares to other specialties among California providers
Family Nurse Practitioner share within California
Family Nurse Practitioner is one of the more visible NUCC categories in California
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Family Nurse Practitioner ABMS/AOA estimate
Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Family Nurse Practitioner US NPIs
Specialty board-certified rate — Family Nurse Practitioner estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
REBECCA PFEIFER-ROSENBLUM appears in the CMS NPPES registry as a Family Nurse Practitioner provider at 5939 SUTTER AVE, RICHMOND, CA, 94804, with a listed phone of (510) 417-5851. NPI 1598379596 was issued on 09/07/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PFEIFER-ROSENBLUM 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 2,094 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $229K in drug spend, with an opioid prescribing rate of 1.3%. 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.
Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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 | 1598379596 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Gender | Female |
| NPI Issued | 09/07/2020 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm REBECCA PFEIFER-ROSENBLUM's current license status, disciplinary history, and board certifications with the Medical Board of California in California before relying on this page for a clinical or care decision.
How we sourced this profile
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 REBECCA PFEIFER-ROSENBLUM. To verify REBECCA PFEIFER-ROSENBLUM's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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.
Prescribing Breakdown
- 30-Day Fills
- 3,056
- Total Day Supply
- 86,570
- Generic Drug Cost
- $38K
- Opioid Claims
- 27 (1.3% rate)
- Antibiotic Claims
- 20
Patient Demographics
- Average Patient Age
- 68.1 years
- Avg HCC Risk Score
- 1.54
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 45, 65-74: 71, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What REBECCA PFEIFER-ROSENBLUM prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
192 claims
- Amlodipine Besylate
Amlodipine Besylate
107 claims
- Metformin Hcl Er
Metformin Hcl Er
84 claims
- Lisinopril
Lisinopril
83 claims
- Levothyroxine Sodium
Levothyroxine Sodium
78 claims
- Losartan Potassium
Losartan Potassium
78 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
77 claims
- Pantoprazole Sodium 53
Pantoprazole Sodium
53 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 192 |
| Amlodipine Besylate | 107 |
| Metformin Hcl Er Metformin Hcl | 84 |
| Lisinopril | 83 |
| Levothyroxine Sodium | 78 |
| Losartan Potassium | 78 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 77 |
| Pantoprazole Sodium | 53 |
| Trazodone Hcl | 53 |
| Hydrochlorothiazide | 49 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How REBECCA PFEIFER-ROSENBLUM fits within the Family Nurse Practitioner landscape nationally.
REBECCA PFEIFER-ROSENBLUM's 2,094 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as PFEIFER-ROSENBLUM.
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
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Frequently Asked Questions
What is REBECCA PFEIFER-ROSENBLUM's specialty? ▼
How much does REBECCA PFEIFER-ROSENBLUM prescribe under Medicare Part D? ▼
Where is REBECCA PFEIFER-ROSENBLUM located? ▼
What is REBECCA PFEIFER-ROSENBLUM's NPI number? ▼
Does REBECCA PFEIFER-ROSENBLUM prescribe opioids? ▼
How many Family Nurse Practitioner providers are there in the US? ▼
What drugs does REBECCA PFEIFER-ROSENBLUM prescribe most often? ▼
Does REBECCA PFEIFER-ROSENBLUM accept Medicare? ▼
How can I verify REBECCA PFEIFER-ROSENBLUM's credentials? ▼
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.
- 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