2026 NPPES data Pharmacotherapy Pharmacist NPI 1083861736 PHARMD.
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ERIC BEST, PHARMD.

Pharmacotherapy Pharmacist in GLENDALE, Arizona. 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
80
Medicare Part D claims · 64 beneficiaries · Pharmacotherapy Pharmacist avg: 397
Generic prescribing
0%
generic claims · 100% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ERIC BEST, PHARMD. is a Pharmacotherapy Pharmacist ([object Object]) practicing in GLENDALE, Arizona with a Medicare Part D prescribing footprint of 80 claims across 64 beneficiaries — 100% brand-name prescribing .

What stands out: ERIC BEST, PHARMD. filed 80 Medicare Part D claims in 2023 across GLENDALE, Arizona. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ERIC BEST, PHARMD. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/25/2008

NPI 1083861736

Primary specialty

Pharmacotherapy Pharmacist

Mid-sized

5,925 US NPIs in this specialty

Medicare Part D claims

80 80% vs specialty avg

2023 prescription claims

Specialty avg: 397

Specialty distribution in Arizona

How Pharmacotherapy Pharmacist compares to other specialties among Arizona providers

Arizona providers

Pharmacotherapy Pharmacist share within Arizona

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

Specialty board-certification context

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

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

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

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

ERIC BEST, PHARMD. is a Pharmacotherapy Pharmacist provider practicing in GLENDALE, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHARMD.. NPI: 1083861736. 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.

ERIC BEST, PHARMD. appears in the CMS NPPES registry as a Pharmacotherapy Pharmacist provider holding PHARMD. credentials at 4353 W BETHANY HOME RD, GLENDALE, AZ, 85301, with a listed phone of (623) 435-7197. NPI 1083861736 was issued on 08/25/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BEST 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 80 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $22K in drug spend, split 100% brand-name and 0% 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.

Pharmacotherapy Pharmacist is a mid-sized specialty nationwide, with 5,925 enrolled providers across 53 states and an average of 397 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

4353 W BETHANY HOME RD
GLENDALE, AZ 85301

Provider Details

NPI 1083861736
Specialty Pharmacotherapy Pharmacist
Credentials PHARMD.
Gender Male
NPI Issued 08/25/2008

Brand vs generic prescribing mix · Brand-heavy

ERIC BEST, PHARMD. — brand share 100.0%
Specialty average (est.)

100% brand-name claims vs 0% generic, on 80 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.

80
Total Claims
$22K
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
80
Total Day Supply
80
Brand vs Generic
100% brand / 0% generic
Brand Drug Cost
$22K
Generic Drug Cost
$0

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.06
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Shingrix
Varicella-Zoster Ge/As01b/Pf
34
Abrysvo
"Rsv Vacc
N/A

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

Pharmacotherapy Pharmacist Overview

How ERIC BEST, PHARMD. fits within the Pharmacotherapy Pharmacist landscape nationally.

5,925
Pharmacotherapy Pharmacist Providers in US
53
States with Pharmacotherapy Pharmacist
397
Avg Claims per Provider

ERIC BEST, PHARMD.'s 80 claims are below the specialty average of 397.

Nearby Pharmacotherapy Pharmacist Providers in Arizona

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

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

Frequently Asked Questions

What is ERIC BEST, PHARMD.'s specialty?
ERIC BEST, PHARMD. specializes in Pharmacotherapy Pharmacist and practices in GLENDALE, Arizona. Credentials: PHARMD..
How much does ERIC BEST, PHARMD. prescribe under Medicare Part D?
In 2023, ERIC BEST, PHARMD. wrote 80 Medicare Part D claims totaling $22K in drug costs for 64 beneficiaries.
Where is ERIC BEST, PHARMD. located?
ERIC BEST, PHARMD. is located at 4353 W BETHANY HOME RD, GLENDALE, AZ, 85301. Phone: (623) 435-7197.
What is ERIC BEST, PHARMD.'s NPI number?
ERIC BEST, PHARMD.'s National Provider Identifier (NPI) is 1083861736, issued on 08/25/2008.
Does ERIC BEST, PHARMD. prescribe more brand-name or generic drugs?
ERIC BEST, PHARMD.'s prescribing is 100% brand-name and 0% generic drugs by claim count, with $22K in brand drug costs.
How many Pharmacotherapy Pharmacist providers are there in the US?
There are 5,925 Pharmacotherapy Pharmacist providers across 53 states in the US. The average Pharmacotherapy Pharmacist provider writes 397 Medicare Part D claims per year.
What drugs does ERIC BEST, PHARMD. prescribe most often?
Based on 2023 Medicare Part D data, ERIC BEST, PHARMD.'s most frequently prescribed drugs include Shingrix, Abrysvo. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIC BEST, PHARMD. accept Medicare?
ERIC BEST, PHARMD. appears in CMS Medicare data with 80 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIC BEST, PHARMD.'s credentials?
ERIC BEST, PHARMD.'s NPI is 1083861736 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

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