2026 NPPES data Nurse Practitioner NPI 1538248034 FNP
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MARGOLO PARSON, FNP

Nurse Practitioner in DAVIS, 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
482
Medicare Part D claims · 191 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARGOLO PARSON, FNP filed 482 Medicare Part D claims in 2023 as a Nurse Practitioner in DAVIS, California, prescribing 90% generic.

482
Part D claims, 2023
90%
generic prescribing

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.

MARGOLO PARSON, FNP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

482 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 MARGOLO PARSON, FNP?

Quality data not reported

NPI registry status

Active

Issued 11/03/2006

NPI 1538248034

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

482 56% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

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

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

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).

MARGOLO PARSON, FNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding FNP credentials at 2330 W COVELL BLVD, DAVIS, CA, 95616, with a listed phone of (530) 668-2600. NPI 1538248034 was issued on 11/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARSON 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 482 prescription claims written by this provider, covering 191 Medicare beneficiaries and totaling roughly $32K in drug spend, split 10% brand-name and 90% 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.

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

2330 W COVELL BLVD
DAVIS, CA 95616

Provider Details

NPI 1538248034
Specialty Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 11/03/2006

Hospital and facility affiliations

Facilities where MARGOLO PARSON, FNP 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.

DIGNITY HEALTH MEDICAL FOUNDATION
DAVIS, 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 MARGOLO PARSON, FNP. To verify MARGOLO PARSON, FNP'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 · Typical

MARGOLO PARSON, FNP — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 482 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.

482
Total Claims
$32K
Total Drug Cost
191
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
896
Total Day Supply
24,645
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$21K
Generic Drug Cost
$11K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
0.87
Gender Split
61% female / 39% male
Age Distribution
<65: 23, 65-74: 109, 75-84: 41, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

What MARGOLO PARSON, FNP 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
Atorvastatin Calcium
33
Lisinopril
27
Losartan Potassium
22
Fluticasone Propionate
17
Albuterol Sulfate Hfa
Albuterol Sulfate
14
Amlodipine Besylate
13
Cyclobenzaprine Hcl
11
Diclofenac Sodium
11
Metformin Hcl
11
Omeprazole
11

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

Nurse Practitioner Overview

How MARGOLO PARSON, FNP 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

MARGOLO PARSON, FNP's 482 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 PARSON.

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

Frequently Asked Questions

What is MARGOLO PARSON, FNP's specialty?
MARGOLO PARSON, FNP specializes in Nurse Practitioner and practices in DAVIS, California. Credentials: FNP.
How much does MARGOLO PARSON, FNP prescribe under Medicare Part D?
In 2023, MARGOLO PARSON, FNP wrote 482 Medicare Part D claims totaling $32K in drug costs for 191 beneficiaries.
Where is MARGOLO PARSON, FNP located?
MARGOLO PARSON, FNP is located at 2330 W COVELL BLVD, DAVIS, CA, 95616. Phone: (530) 668-2600.
What is MARGOLO PARSON, FNP's NPI number?
MARGOLO PARSON, FNP's National Provider Identifier (NPI) is 1538248034, issued on 11/03/2006.
Does MARGOLO PARSON, FNP prescribe more brand-name or generic drugs?
MARGOLO PARSON, FNP's prescribing is 10% brand-name and 90% generic drugs by claim count, with $21K 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 MARGOLO PARSON, FNP prescribe most often?
Based on 2023 Medicare Part D data, MARGOLO PARSON, FNP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARGOLO PARSON, FNP accept Medicare?
MARGOLO PARSON, FNP appears in CMS Medicare data with 482 Part D claims and 191 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGOLO PARSON, FNP's credentials?
MARGOLO PARSON, FNP's NPI is 1538248034 with credentials FNP. 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.
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