2026 NPPES data Pharmacist NPI 1245755180 RPH
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Marrissa Walker, RPH

Pharmacist in Tallahassee, Florida. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 290,447 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
135
Medicare Part D claims · 115 beneficiaries · Pharmacist avg: 135
Generic prescribing
0%
generic claims · 99% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Marrissa Walker, RPH filed 135 Medicare Part D claims in 2023 as a Pharmacist in Tallahassee, Florida, prescribing 0% generic.

135
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.

Marrissa Walker, RPH's Medicare Part D volume vs every U.S. prescriber

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

135 35th percentile higher than 35% 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 Marrissa Walker, RPH?

Quality data not reported

NPI registry status

Active

Issued 08/11/2017

NPI 1245755180

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

135 0% vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in Florida

How Pharmacist compares to other specialties among Florida providers

Florida providers

Largest specialties in Florida (% of in-state providers)

Behavior Technician — 16.1%Behavior Technician16.1%Mental Health Counselor — 4.8%Mental Health Counselor4.8%Family Nurse Practitioner — 4.5%Family Nurse Practitioner4.5%Pharmacist — 4.2%Pharmacist4.2%Student in an Organized Health Care Education/Training Program — 3.8%Student in an Organized Health Care Education/Training Program3.8%Physical Therapist — 3.1%Physical Therapist3.1%
Largest specialties in Florida (% of in-state providers)

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).

Marrissa Walker, RPH appears in the CMS NPPES registry as a Pharmacist provider holding RPH credentials at 5032 CAPITAL CIR SW STE 1, Tallahassee, FL, 32305, with a listed phone of (850) 878-1740. NPI 1245755180 was issued on 08/11/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Walker 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 135 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $34K in drug spend, split 99% 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

5032 CAPITAL CIR SW STE 1
Tallahassee, FL 32305

Provider Details

NPI 1245755180
Specialty Pharmacist
Credentials RPH
Gender Female
NPI Issued 08/11/2017

License & disciplinary context — Florida FLDOH 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 ~75K Florida medical licensees in 2023 — they are NOT specific to Marrissa Walker, RPH. To verify Marrissa Walker, RPH's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

Marrissa Walker, RPH — brand share 99.0%
Pharmacist average

99% brand-name claims vs 0% generic, on 135 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.

135
Total Claims
$34K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
136
Total Day Supply
202
Brand vs Generic
99% brand / 0% generic
Brand Drug Cost
$34K

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
0.95
Gender Split
58% female / 42% 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
Arexvy
Rsvpref3 Antigen/As01e/Pf
82
Shingrix
Varicella-Zoster Ge/As01b/Pf
41

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

Pharmacist Overview

How Marrissa Walker, RPH fits within the Pharmacist landscape nationally.

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

Marrissa Walker, RPH's 135 claims are below the specialty average of 135.

Nearby Pharmacist Providers in Florida

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

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 Florida 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.

Frequently Asked Questions

What is Marrissa Walker, RPH's specialty?
Marrissa Walker, RPH specializes in Pharmacist and practices in Tallahassee, Florida. Credentials: RPH.
How much does Marrissa Walker, RPH prescribe under Medicare Part D?
In 2023, Marrissa Walker, RPH wrote 135 Medicare Part D claims totaling $34K in drug costs for 115 beneficiaries.
Where is Marrissa Walker, RPH located?
Marrissa Walker, RPH is located at 5032 CAPITAL CIR SW STE 1, Tallahassee, FL, 32305. Phone: (850) 878-1740.
What is Marrissa Walker, RPH's NPI number?
Marrissa Walker, RPH's National Provider Identifier (NPI) is 1245755180, issued on 08/11/2017.
Does Marrissa Walker, RPH prescribe more brand-name or generic drugs?
Marrissa Walker, RPH's prescribing is 99% brand-name and 0% generic drugs by claim count, with $34K 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 Marrissa Walker, RPH prescribe most often?
Based on 2023 Medicare Part D data, Marrissa Walker, RPH's most frequently prescribed drugs include Arexvy, Shingrix. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marrissa Walker, RPH accept Medicare?
Marrissa Walker, RPH appears in CMS Medicare data with 135 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marrissa Walker, RPH's credentials?
Marrissa Walker, RPH's NPI is 1245755180 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

Compiled from official public sources by the PlainDoctor editorial team.