2026 NPPES data Pharmacist NPI 1558929497 RPH
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NISSY CHERIAN, RPH

Pharmacist in BETHANY, Oklahoma. 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
14
Medicare Part D claims · 14 beneficiaries · Pharmacist avg: 135
Generic prescribing
0%
generic claims · 100% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

NISSY CHERIAN, RPH filed 14 Medicare Part D claims in 2023 as a Pharmacist in BETHANY, Oklahoma, prescribing 0% generic.

14
Part D claims, 2023
0%
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.

NISSY CHERIAN, RPH's Medicare Part D volume vs every U.S. prescriber

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

14 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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 NISSY CHERIAN, RPH?

Quality data not reported

NPI registry status

Active

Issued 06/05/2019

NPI 1558929497

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

14 90% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Oklahoma

How Pharmacist compares to other specialties among Oklahoma providers

Oklahoma providers

Pharmacist share within Oklahoma

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

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).

NISSY CHERIAN, RPH is a Pharmacist provider practicing in BETHANY, Oklahoma, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: RPH. NPI: 1558929497. 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.

NISSY CHERIAN, RPH appears in the CMS NPPES registry as a Pharmacist provider holding RPH credentials at 2316 N ROCKWELL AVE, BETHANY, OK, 73008, with a listed phone of (405) 440-0342. NPI 1558929497 was issued on 06/05/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHERIAN 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 14 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $3K 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.

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

2316 N ROCKWELL AVE
BETHANY, OK 73008

Provider Details

NPI 1558929497
Specialty Pharmacist
Credentials RPH
Gender Female
NPI Issued 06/05/2019

Brand vs generic prescribing mix · Brand-heavy

NISSY CHERIAN, RPH — brand share 100.0%
Specialty average (est.)

100% brand-name claims vs 0% generic, on 14 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.

14
Total Claims
$3K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
14
Total Day Supply
15
Brand vs Generic
100% brand / 0% generic
Brand Drug Cost
$3K
Generic Drug Cost
$0

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.27
Age Distribution
<65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A

Pharmacist Overview

How NISSY CHERIAN, RPH fits within the Pharmacist landscape nationally.

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

NISSY CHERIAN, RPH's 14 claims are below the specialty average of 135.

Nearby Pharmacist Providers in Oklahoma

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

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

Frequently Asked Questions

What is NISSY CHERIAN, RPH's specialty?
NISSY CHERIAN, RPH specializes in Pharmacist and practices in BETHANY, Oklahoma. Credentials: RPH.
How much does NISSY CHERIAN, RPH prescribe under Medicare Part D?
In 2023, NISSY CHERIAN, RPH wrote 14 Medicare Part D claims totaling $3K in drug costs for 14 beneficiaries.
Where is NISSY CHERIAN, RPH located?
NISSY CHERIAN, RPH is located at 2316 N ROCKWELL AVE, BETHANY, OK, 73008. Phone: (405) 440-0342.
What is NISSY CHERIAN, RPH's NPI number?
NISSY CHERIAN, RPH's National Provider Identifier (NPI) is 1558929497, issued on 06/05/2019.
Does NISSY CHERIAN, RPH prescribe more brand-name or generic drugs?
NISSY CHERIAN, RPH's prescribing is 100% brand-name and 0% generic drugs by claim count, with $3K 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.
Does NISSY CHERIAN, RPH accept Medicare?
NISSY CHERIAN, RPH appears in CMS Medicare data with 14 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NISSY CHERIAN, RPH's credentials?
NISSY CHERIAN, RPH's NPI is 1558929497 with credentials RPH. 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