2026 NPPES data Cytopathology Physician NPI 1427378603 MD
Verify on CMS →

RILEY ALEXANDER, MD

Cytopathology Physician in OGDEN, Utah. 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.
What the federal data reveals: RILEY ALEXANDER, MD is a Cytopathology Physician ([object Object]) practicing in OGDEN, Utah .

What stands out: RILEY ALEXANDER, MD specializes in Cytopathology Physician and practices in OGDEN, Utah, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

RILEY ALEXANDER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

RILEY ALEXANDER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/10/2010

NPI 1427378603

Primary specialty

Cytopathology Physician

Niche

1,383 US NPIs in this specialty

Specialty distribution in Utah

How Cytopathology Physician compares to other specialties among Utah providers

Utah providers

Cytopathology Physician share within Utah

1. Cytopathology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cytopathology Physician share within Utah

Specialty board-certification context

Estimated specialty board-certified rate — Cytopathology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Cytopathology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cytopathology Physician) — 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).

RILEY ALEXANDER, MD is a Cytopathology Physician provider practicing in OGDEN, Utah, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1427378603. 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.

RILEY ALEXANDER, MD appears in the CMS NPPES registry as a Cytopathology Physician provider holding MD credentials at 4401 HARRISON BLVD, OGDEN, UT, 84403, with a listed phone of (801) 387-2800. NPI 1427378603 was issued on 06/10/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALEXANDER 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Cytopathology Physician providers operate outside Part D entirely.

Cytopathology Physician is a narrow specialty nationwide, with 1,383 enrolled providers across 50 states and an average of 92 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

4401 HARRISON BLVD
OGDEN, UT 84403

Provider Details

NPI 1427378603
Specialty Cytopathology Physician
Credentials MD
Gender Male
NPI Issued 06/10/2010

Hospital and facility affiliations

Facilities where RILEY ALEXANDER, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

IHC HEALTH SERVICES INC
ST GEORGE, UT
SOUTHERN INDIANA PATHOLOGISTS
BLOOMINGTON, IN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Cytopathology Physician Overview

How RILEY ALEXANDER, MD fits within the Cytopathology Physician landscape nationally.

1,383
Cytopathology Physician Providers in US
50
States with Cytopathology Physician
92
Avg Claims per Provider

Nearby Cytopathology Physician Providers in Utah

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

Compare Cytopathology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RILEY ALEXANDER, MD's specialty?
RILEY ALEXANDER, MD specializes in Cytopathology Physician and practices in OGDEN, Utah. Credentials: MD.
Where is RILEY ALEXANDER, MD located?
RILEY ALEXANDER, MD is located at 4401 HARRISON BLVD, OGDEN, UT, 84403. Phone: (801) 387-2800.
What is RILEY ALEXANDER, MD's NPI number?
RILEY ALEXANDER, MD's National Provider Identifier (NPI) is 1427378603, issued on 06/10/2010.
How many Cytopathology Physician providers are there in the US?
There are 1,383 Cytopathology Physician providers across 50 states in the US. The average Cytopathology Physician provider writes 92 Medicare Part D claims per year.
Does RILEY ALEXANDER, MD accept Medicare?
RILEY ALEXANDER, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RILEY ALEXANDER, MD's credentials?
RILEY ALEXANDER, MD's NPI is 1427378603 with credentials MD. 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.
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