NPI registry status
Active
2026 NPPES data Pharmacist NPI 1417239005 PHARMD
Verify on CMS → Larry Arias, PHARMD
Pharmacist in Santa Cruz, 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 291,043 in Pharmacist, 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
3K
Medicare Part D claims · 743 beneficiaries · Pharmacist avg: 135
Generic prescribing
76%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Larry Arias, PHARMD filed 2,597 Medicare Part D claims in 2023 as a Pharmacist in Santa Cruz, California, prescribing 76% generic.
- 3K
- Part D claims, 2023
- 76%
- 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.
Larry Arias, PHARMD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,597 Top 13% higher than 87% 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 Larry Arias, PHARMD?
Quality data not reportedPrimary specialty
Pharmacist
Medicare Part D claims
2,597 19× vs specialty avg
Specialty distribution in California
How Pharmacist compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pharmacist. Verify directly:
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).
Larry Arias, PHARMD appears in the CMS NPPES registry as a Pharmacist provider holding PHARMD credentials at 945 DELAWARE AVE, Santa Cruz, CA, 95060, with a listed phone of (951) 551-1198. NPI 1417239005 was issued on 09/09/2011.
Medicare Part D records for calendar year 2023 show 2,597 prescription claims written by this provider, covering 743 Medicare beneficiaries and totaling roughly $317K in drug spend, split 21% brand-name and 76% generic by claim count, with an opioid prescribing rate of 1.5%.
Pharmacist is a high-volume specialty nationwide, with 291,043 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
Provider Details
| NPI | 1417239005 |
|---|---|
| Specialty | Pharmacist |
| Credentials | PHARMD |
| Gender | Male |
| NPI Issued | 09/09/2011 |
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 Larry Arias, PHARMD. To verify Larry Arias, PHARMD'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
Larry Arias, PHARMD - brand share 21.0%
Pharmacist average
21% brand-name claims vs 76% generic, on 2,597 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.
2,597
Total Claims
$317K
Total Drug Cost
743
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,453
- Total Day Supply
- 223,083
- Brand vs Generic
- 21% brand / 76% generic
- Brand Drug Cost
- $284K
- Generic Drug Cost
- $30K
- Opioid Claims
- 39 (1.5% rate)
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 1.00
- Gender Split
- 51% female / 49% male
- Age Distribution
- <65: 27, 65-74: 478, 75-84: 191, 85+: 47
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Larry Arias, PHARMD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
438 claims
- Amlodipine Besylate
Amlodipine Besylate
188 claims
- Lisinopril
Lisinopril
183 claims
- Losartan Potassium 144
Losartan Potassium
144 claims
- Jardiance 118
Jardiance
118 claims
- Ozempic 115
Ozempic
115 claims
- Metformin Hcl Er 103
Metformin Hcl Er
103 claims
- Hydrochlorothiazide 91
Hydrochlorothiazide
91 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 438 |
| Amlodipine Besylate | 188 |
| Lisinopril | 183 |
| Losartan Potassium | 144 |
| Jardiance Empagliflozin | 118 |
| Ozempic Semaglutide | 115 |
| Metformin Hcl Er Metformin Hcl | 103 |
| Hydrochlorothiazide | 91 |
| Glipizide | 89 |
| Metformin Hcl | 83 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pharmacist Overview
How Larry Arias, PHARMD fits within the Pharmacist landscape nationally.
291,043
Pharmacist Providers in US
56
States with Pharmacist
135
Avg Claims per Provider
Larry Arias, PHARMD's 2,597 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 Arias.
Dr. Caroline A-Haja
PHARM.D.
San Pedro, CA
Gayatri Aachi
Livermore, CA
Dr. Mahshid Aalam
PHARMD
Los Angeles, CA
Jaleh Aaliiveli
San Ramon, CA
Dr. Cassi Aarvig
RPH
Tracy, CA
Compare Pharmacist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pharmacist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Larry Arias, PHARMD's specialty? ▼
Larry Arias, PHARMD specializes in Pharmacist and practices in Santa Cruz, California. Credentials: PHARMD.
How much does Larry Arias, PHARMD prescribe under Medicare Part D? ▼
In 2023, Larry Arias, PHARMD wrote 2,597 Medicare Part D claims totaling $317K in drug costs for 743 beneficiaries.
Where is Larry Arias, PHARMD located? ▼
Larry Arias, PHARMD is located at 945 DELAWARE AVE, Santa Cruz, CA, 95060. Phone: (951) 551-1198.
What is Larry Arias, PHARMD's NPI number? ▼
Larry Arias, PHARMD's National Provider Identifier (NPI) is 1417239005, issued on 09/09/2011.
Does Larry Arias, PHARMD prescribe more brand-name or generic drugs? ▼
Larry Arias, PHARMD's prescribing is 21% brand-name and 76% generic drugs by claim count, with $284K in brand drug costs.
Does Larry Arias, PHARMD prescribe opioids? ▼
Yes, Larry Arias, PHARMD had 39 opioid claims in 2023 with an opioid prescribing rate of 1.5%.
How many Pharmacist providers are there in the US? ▼
There are 291,043 Pharmacist providers across 56 states in the US. The average Pharmacist provider writes 135 Medicare Part D claims per year.
What drugs does Larry Arias, PHARMD prescribe most often? ▼
Based on 2023 Medicare Part D data, Larry Arias, PHARMD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Larry Arias, PHARMD accept Medicare? ▼
Larry Arias, PHARMD appears in CMS Medicare data with 2,597 Part D claims and 743 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Larry Arias, PHARMD's credentials? ▼
Larry Arias, PHARMD's NPI is 1417239005 with credentials PHARMD. 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.
- 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 PlainDoctor editorial team.
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.