2026 NPPES data Pharmacist NPI 1972134294
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MARL AYSON

Pharmacist in LANCASTER, 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
2K
Medicare Part D claims · 159 beneficiaries · Pharmacist avg: 135
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARL AYSON filed 2,177 Medicare Part D claims in 2023 as a Pharmacist in LANCASTER, California, prescribing 94% generic.

2K
Part D claims, 2023
94%
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.

MARL AYSON's Medicare Part D volume vs every U.S. prescriber

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

2,177 Top 15% higher than 85% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 MARL AYSON?

Quality data not reported

NPI registry status

Active

Issued 01/27/2020

NPI 1972134294

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

2,177 1513% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in California

How Pharmacist compares to other specialties among California providers

California providers

Pharmacist share within California

1. Pharmacist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pharmacist share within California

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Pharmacist) — 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).

MARL AYSON is a Pharmacist provider practicing in LANCASTER, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1972134294. 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.

MARL AYSON appears in the CMS NPPES registry as a Pharmacist provider at 349 E AVENUE K6, LANCASTER, CA, 93535, with a listed phone of (661) 723-4260. NPI 1972134294 was issued on 01/27/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AYSON 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 2,177 prescription claims written by this provider, covering 159 Medicare beneficiaries and totaling roughly $484K in drug spend, split 6% brand-name and 94% 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.

Pharmacist is a high-volume specialty nationwide, with 290,447 enrolled providers across 56 states and an average of 135 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

349 E AVENUE K6
LANCASTER, CA 93535

Provider Details

NPI 1972134294
Specialty Pharmacist
Gender Male
NPI Issued 01/27/2020

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 MARL AYSON. To verify MARL AYSON'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 · Generic-heavy

MARL AYSON — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 2,177 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.

2,177
Total Claims
$484K
Total Drug Cost
159
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,755
Total Day Supply
80,835
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$370K
Generic Drug Cost
$114K

Patient Demographics

Average Patient Age
56.0 years
Avg HCC Risk Score
1.27
Gender Split
56% female / 44% male
Age Distribution
<65: 107, 65-74: 48, 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
Bupropion Xl
Bupropion Hcl
180
Trazodone Hcl
150
Sertraline Hcl
148
Buspirone Hcl
137
Aripiprazole
118
Quetiapine Fumarate
112
Escitalopram Oxalate
89
Olanzapine
84
Invega Sustenna
Paliperidone Palmitate
77
Fluoxetine Hcl
71

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

Pharmacist Overview

How MARL AYSON fits within the Pharmacist landscape nationally.

290,447
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider

MARL AYSON's 2,177 claims are above the specialty average of 135.

Nearby Pharmacist Providers in California

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

Compare Pharmacist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARL AYSON's specialty?
MARL AYSON specializes in Pharmacist and practices in LANCASTER, California.
How much does MARL AYSON prescribe under Medicare Part D?
In 2023, MARL AYSON wrote 2,177 Medicare Part D claims totaling $484K in drug costs for 159 beneficiaries.
Where is MARL AYSON located?
MARL AYSON is located at 349 E AVENUE K6, LANCASTER, CA, 93535. Phone: (661) 723-4260.
What is MARL AYSON's NPI number?
MARL AYSON's National Provider Identifier (NPI) is 1972134294, issued on 01/27/2020.
Does MARL AYSON prescribe more brand-name or generic drugs?
MARL AYSON's prescribing is 6% brand-name and 94% generic drugs by claim count, with $370K in brand drug costs.
How many Pharmacist providers are there in the US?
There are 290,447 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
What drugs does MARL AYSON prescribe most often?
Based on 2023 Medicare Part D data, MARL AYSON's most frequently prescribed drugs include Bupropion Xl, Trazodone Hcl, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARL AYSON accept Medicare?
MARL AYSON appears in CMS Medicare data with 2,177 Part D claims and 159 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARL AYSON's credentials?
MARL AYSON's NPI is 1972134294. 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