2026 NPPES data Nurse Practitioner NPI 1538897947
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SERENA BAKER

Nurse Practitioner in TEMECULA, 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
592
Medicare Part D claims · 169 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
57.6264/100
▼ 25 pts below national avg 83.1 · [object Object]
What the federal data reveals: SERENA BAKER is a Nurse Practitioner ([object Object]) practicing in TEMECULA, California with a Medicare Part D prescribing footprint of 592 claims across 169 beneficiaries — 27% brand-name prescribing . Their CMS MIPS Final Score of 57.6264/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: SERENA BAKER reported a CMS MIPS final score of 57.6264 out of 100, below the 83.1 national average, and filed 592 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SERENA BAKER at a glance

Below national average

NPI registry status

Active

Issued 08/12/2022

NPI 1538897947

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

592 45% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

MIPS final score

57.6264/100 25.473599999999998% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Nurse Practitioner compares to other specialties among California providers

California providers

Nurse Practitioner share within California

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within California

Medicare quality performance — MIPS

SERENA BAKER's 2023 MIPS final score plotted against the Nurse Practitioner national average

Below national average
MIPS Final Score
57.6264/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nurse Practitioner) — 57.6264/100 vs national avg 83.1

0%100%National avg83%57.6%
MIPS final score (Nurse Practitioner) — 57.6264/100 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).

SERENA BAKER is a Nurse Practitioner provider practicing in TEMECULA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1538897947. 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.

SERENA BAKER appears in the CMS NPPES registry as a Nurse Practitioner provider at 27708 JEFFERSON AVE STE 201, TEMECULA, CA, 92590, with a listed phone of (951) 696-7587. NPI 1538897947 was issued on 08/12/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKER 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 592 prescription claims written by this provider, covering 169 Medicare beneficiaries and totaling roughly $239K in drug spend, split 27% brand-name and 73% generic by claim count. 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 57.6264/100 for the 2023 performance year (Quality 49.17, Cost 59.5848), compared with the national average of 83.1.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

27708 JEFFERSON AVE STE 201
TEMECULA, CA 92590

Provider Details

NPI 1538897947
Specialty Nurse Practitioner
Gender Female
NPI Issued 08/12/2022

CMS Quality Score (MIPS)

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

57.6264
Final Score
Avg: 83.1
49.17
Quality
59.5848
Cost
0
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SERENA BAKER 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.

EMERGENCY PHYSICIANS URGENT CARE INC
WILDOMAR, 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 SERENA BAKER. To verify SERENA BAKER'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.

Brand vs generic prescribing mix · Above average

SERENA BAKER — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 592 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

592
Total Claims
$239K
Total Drug Cost
169
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
823
Total Day Supply
21,217
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$202K
Generic Drug Cost
$37K
Antibiotic Claims
55

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
6.22
Gender Split
57% female / 43% male
Age Distribution
<65: 49, 65-74: 73, 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.

Drug Claims
Sevelamer Carbonate
41
Auryxia
Ferric Citrate
39
Clinisol
Parenteral Amino Acid 15% No.5
27
Lokelma
Sodium Zirconium Cyclosilicate
23
Losartan Potassium
22
Calcium Acetate
20
Prosol
Parenteral Amino Acid 20% No.1
20
Veltassa
Patiromer Calcium Sorbitex
20
Clonidine
17
Fluticasone Propionate
17

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

Nurse Practitioner Overview

How SERENA BAKER fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

SERENA BAKER's 592 claims are below the specialty average of 1,084.

Nearby Nurse Practitioner Providers in California

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

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SERENA BAKER's specialty?
SERENA BAKER specializes in Nurse Practitioner and practices in TEMECULA, California.
How much does SERENA BAKER prescribe under Medicare Part D?
In 2023, SERENA BAKER wrote 592 Medicare Part D claims totaling $239K in drug costs for 169 beneficiaries.
What is SERENA BAKER's Medicare quality score?
SERENA BAKER has a CMS MIPS Final Score of 57.6264/100 (Quality: 49.17, Cost: 59.5848). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SERENA BAKER located?
SERENA BAKER is located at 27708 JEFFERSON AVE STE 201, TEMECULA, CA, 92590. Phone: (951) 696-7587.
What is SERENA BAKER's NPI number?
SERENA BAKER's National Provider Identifier (NPI) is 1538897947, issued on 08/12/2022.
Does SERENA BAKER prescribe more brand-name or generic drugs?
SERENA BAKER's prescribing is 27% brand-name and 73% generic drugs by claim count, with $202K in brand drug costs.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does SERENA BAKER prescribe most often?
Based on 2023 Medicare Part D data, SERENA BAKER's most frequently prescribed drugs include Sevelamer Carbonate, Auryxia, Clinisol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SERENA BAKER accept Medicare?
SERENA BAKER appears in CMS Medicare data with 592 Part D claims and 169 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SERENA BAKER's credentials?
SERENA BAKER's NPI is 1538897947. 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