2026 NPPES data Pharmacist NPI 1104488071
Verify on CMS →

Mariatou Sisay

Pharmacist in Roseville, 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 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
3K
Medicare Part D claims · 513 beneficiaries · Pharmacist avg: 135
Generic prescribing
68%
generic claims · 24% 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

Mariatou Sisay filed 2,996 Medicare Part D claims in 2023 as a Pharmacist in Roseville, California, prescribing 68% generic.

3K
Part D claims, 2023
68%
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.

Mariatou Sisay's Medicare Part D volume vs every U.S. prescriber

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

2,996 Top 12% higher than 88% 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. 2K+: 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 Mariatou Sisay?

Quality data not reported

NPI registry status

Active

Issued 07/01/2019

NPI 1104488071

Primary specialty

Pharmacist

High-volume

290,447 US NPIs in this specialty

Medicare Part D claims

2,996 22× vs specialty avg

2023 prescription claims

Specialty avg: 135

Specialty distribution in California

How Pharmacist compares to other specialties among California providers

California providers

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

Behavior Technician - 17.3%Behavior Technician17.3%Marriage & Family Therapist - 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Pharmacist - 3.5%Pharmacist3.5%Clinical Social Worker - 3.1%Clinical Social Worker3.1%
Largest specialties in California (% of in-state 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:

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).

Mariatou Sisay appears in the CMS NPPES registry as a Pharmacist provider at 1011 RIVERSIDE AVE, Roseville, CA, 95678, with a listed phone of (916) 746-6827. NPI 1104488071 was issued on 07/01/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Sisay 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 2,996 prescription claims written by this provider, covering 513 Medicare beneficiaries and totaling roughly $465K in drug spend, split 24% brand-name and 68% 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

1011 RIVERSIDE AVE
Roseville, CA 95678

Provider Details

NPI 1104488071
Specialty Pharmacist
Gender Female
NPI Issued 07/01/2019

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 Mariatou Sisay. To verify Mariatou Sisay'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

Mariatou Sisay - brand share 24.0%
Pharmacist average

24% brand-name claims vs 68% generic, on 2,996 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.

2,996
Total Claims
$465K
Total Drug Cost
513
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,537
Total Day Supply
286,190
Brand vs Generic
24% brand / 68% generic
Brand Drug Cost
$429K
Generic Drug Cost
$30K

Patient Demographics

Average Patient Age
69.9 years
Avg HCC Risk Score
1.23
Gender Split
47% female / 53% male
Age Distribution
<65: 32, 65-74: 391, 75-84: 90, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

What Mariatou Sisay prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
481
Metformin Hcl Er
Metformin Hcl
332
Glipizide
312
Humulin N
Insulin Nph Human Isophane
203
Metformin Hcl
197
Jardiance
Empagliflozin
179
Losartan Potassium
95
Amlodipine Besylate
84
Lisinopril
79
Simvastatin
75

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

Pharmacist Overview

How Mariatou Sisay fits within the Pharmacist landscape nationally.

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

Mariatou Sisay's 2,996 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 Sisay.

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.

Frequently Asked Questions

What is Mariatou Sisay's specialty?
Mariatou Sisay specializes in Pharmacist and practices in Roseville, California.
How much does Mariatou Sisay prescribe under Medicare Part D?
In 2023, Mariatou Sisay wrote 2,996 Medicare Part D claims totaling $465K in drug costs for 513 beneficiaries.
Where is Mariatou Sisay located?
Mariatou Sisay is located at 1011 RIVERSIDE AVE, Roseville, CA, 95678. Phone: (916) 746-6827.
What is Mariatou Sisay's NPI number?
Mariatou Sisay's National Provider Identifier (NPI) is 1104488071, issued on 07/01/2019.
Does Mariatou Sisay prescribe more brand-name or generic drugs?
Mariatou Sisay's prescribing is 24% brand-name and 68% generic drugs by claim count, with $429K 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 Mariatou Sisay prescribe most often?
Based on 2023 Medicare Part D data, Mariatou Sisay's most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl Er, Glipizide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mariatou Sisay accept Medicare?
Mariatou Sisay appears in CMS Medicare data with 2,996 Part D claims and 513 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mariatou Sisay's credentials?
Mariatou Sisay's NPI is 1104488071. 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.