PlainDoctor

2026 NPPES data Family Nurse Practitioner NPI 1508095654 NP
Verify on CMS →

Sandra Isaak, NP

Family Nurse Practitioner in Selma, 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 210,832 in Family Nurse Practitioner, 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
213
Medicare Part D claims · 111 beneficiaries · Family Nurse Practitioner avg: 1K
MIPS score
94.6/100
▲ 11 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Sandra Isaak, NP reported a CMS MIPS final score of 94.6/100 - above the 83.5 national average - and filed 213 Medicare Part D claims in 2023.

94.6/100
MIPS score · +11 vs avg
213
Part D claims, 2023
≥73rd
pct among measured MIPS (lower-bound band)

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.

CMS NPPES provider registry desk

NPI 1508095654 · Family Nurse Practitioner

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-MID · PHOTO-FINISH

  • NPI-10 1508095654
  • ENUM-MID 2009
  • TAX-MEGA 211K Family Nurse
  • MIPS-ELITE 94.6/100
  • RX-LIGHT 213
  • BOOK-MID 15,115 in California
  • PHOTO-FINISH Kiara Barnes · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Sandra Isaak, NP's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

95 ≥ 73rd percentile 73% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Sandra Isaak, NP sits

This provider among family nurse practitioner peers

Across the 26,556 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Sandra Isaak, NP writes more Part D claims than 36% of them and scores higher on MIPS quality than 77% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100022.344.666.989.3Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 78Sandra Isaak, NP, Part D claim volume, percentile in specialty: 36 · MIPS quality, percentile: 77
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Sandra Isaak, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Sandra Isaak, NP?

High performer (top quartile)

NPI registry status

Active

Issued 07/10/2009

NPI 1508095654

Primary specialty

Family Nurse Practitioner

High-volume

210,832 US NPIs in this specialty

Medicare Part D claims

213 83% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

MIPS final score

94.6/100 11.1 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in California

How Family Nurse Practitioner compares to other specialties among California providers

California providers
Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Heal…5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Family Nurse Practitioner1.6%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Sandra Isaak, NP's 2023 MIPS final score plotted against the Family Nurse Practitioner national average

High performer (top quartile)
MIPS Final Score
94.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%94.6%
MIPS final score (Family Nurse Practitioner) - 94.6/100 vs national avg 83.5
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).

Practice Address

1141 ROSE AVE
Selma, CA 93662
(559) 891-6244

Provider Details

NPI 1508095654
Specialty Family Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 07/10/2009

CMS Quality Score (MIPS)

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

94.6267
Final Score
Measured-score avg: 83.5
76.6789
Quality
97.1443
Cost

Reporting: Group practice

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 Sandra Isaak, NP. To verify Sandra Isaak, 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.

213
Total Claims
$5K
Total Drug Cost
111
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
213
Total Day Supply
2,425
Generic Drug Cost
$3K
Opioid Claims
12 (5.6% rate)
Antibiotic Claims
58

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
1.52
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

What Sandra Isaak, NP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Naproxen
 58
Cefdinir
 21
Ibuprofen
 18
Cephalexin
 14
Ondansetron Odt
Ondansetron
13
Naloxone Hcl
 11

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

More Family Nurse Practitioner in CA → All providers in California → Compare specialties →

Family Nurse Practitioner Overview

How Sandra Isaak, NP fits within the Family Nurse Practitioner landscape nationally.

210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Sandra Isaak, NP's 213 claims are below the specialty average of 1,222.

Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year

Two federal-record peer sets for Isaak, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (94.6 here).

Crisjun Abrea 94.6 TX Matthew Cook 94.6 AZ Jennifer Cooney 94.6 WA Kiara Barnes 94.6 FL

Same NPPES enumeration year (2009)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Laurie Belknap Endwell, NY Andrea Stribling Springfield, IL Kimberley Bell Johnson City, TN Holly Copeland Littleton, CO

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 Isaak.

One of 15,115 Family Nurse Practitioner providers enrolled in California, 5 are shown here.

Dr. Danielle Aaroe
FAMILY NURSE PRACTIT
Oroville, CA
Joshua Aaron
Mission Hills, CA
Dr. Orly Aaron
NP
San Francisco, CA
Paris Gilbert Russ Aaron
Sacramento, CA
Dr. Alvin Joseph Abad
FNP-C
San Francisco, CA

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

Frequently Asked Questions

What is Sandra Isaak, NP's specialty? ▼
Sandra Isaak, NP specializes in Family Nurse Practitioner and practices in Selma, California. Credentials: NP.
How much does Sandra Isaak, NP prescribe under Medicare Part D? ▼
In 2023, Sandra Isaak, NP wrote 213 Medicare Part D claims totaling $5K in drug costs for 111 beneficiaries.
What is Sandra Isaak, NP's Medicare quality score? ▼
Sandra Isaak, NP has a CMS MIPS Final Score of 94.6/100 (Quality: 76.7, Cost: 97.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sandra Isaak, NP located? ▼
Sandra Isaak, NP is located at 1141 ROSE AVE, Selma, CA, 93662. Phone: (559) 891-6244.
What is Sandra Isaak, NP's NPI number? ▼
Sandra Isaak, NP's National Provider Identifier (NPI) is 1508095654, issued on 07/10/2009.
Does Sandra Isaak, NP prescribe opioids? ▼
Yes, Sandra Isaak, NP had 12 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Sandra Isaak, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Sandra Isaak, NP's most frequently prescribed drugs include Naproxen, Cefdinir, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sandra Isaak, NP accept Medicare? ▼
Sandra Isaak, NP appears in CMS Medicare data with 213 Part D claims and 111 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sandra Isaak, NP's credentials? ▼
Sandra Isaak, NP's NPI is 1508095654 with credentials 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 editorial process.

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.