2026 NPPES data Specialist NPI 1083608095 M.D.
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KAY WALKER, M.D.

Specialist in SALT LAKE CITY, 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.
Prescribing volume
170
Medicare Part D claims · 49 beneficiaries · Specialist avg: 1K
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KAY WALKER, M.D. filed 170 Medicare Part D claims in 2023 as a Specialist in SALT LAKE CITY, Utah, prescribing 52% generic.

170
Part D claims, 2023
52%
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.

KAY WALKER, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

170 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 KAY WALKER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/06/2005

NPI 1083608095

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

170 88% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Utah

How Specialist compares to other specialties among Utah providers

Utah providers

Specialist share within Utah

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Utah

Specialty board-certification context

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

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

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

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

KAY WALKER, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 1121 E 3900 S, SALT LAKE CITY, UT, 84124, with a listed phone of (801) 281-1300. NPI 1083608095 was issued on 09/06/2005. 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 170 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $111K in drug spend, split 48% brand-name and 52% 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

1121 E 3900 S
SALT LAKE CITY, UT 84124

Provider Details

NPI 1083608095
Specialty Specialist
Credentials M.D.
Gender Female
NPI Issued 09/06/2005

Hospital and facility affiliations

Facilities where KAY WALKER, M.D. 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.

VICKI J LYONS MD PC
OGDEN, UT

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

Brand vs generic prescribing mix · Above average

KAY WALKER, M.D. — brand share 48.0%
Specialty average (est.)

48% brand-name claims vs 52% generic, on 170 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.

170
Total Claims
$111K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
261
Total Day Supply
7,233
Brand vs Generic
48% brand / 52% generic
Brand Drug Cost
$105K
Generic Drug Cost
$6K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
1.05
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What KAY WALKER, M.D. 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
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
25
Montelukast Sodium
21
Albuterol Sulfate Hfa
Albuterol Sulfate
14
Gammagard Liquid
Immun Glob G(Igg)/Gly/Iga Ov50
13
Fluticasone-Salmeterol
Fluticasone Propion/Salmeterol
12
Symbicort
Budesonide/Formoterol Fumarate
11

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

Specialist Overview

How KAY WALKER, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

KAY WALKER, M.D.'s 170 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Utah

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

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

Frequently Asked Questions

What is KAY WALKER, M.D.'s specialty?
KAY WALKER, M.D. specializes in Specialist and practices in SALT LAKE CITY, Utah. Credentials: M.D..
How much does KAY WALKER, M.D. prescribe under Medicare Part D?
In 2023, KAY WALKER, M.D. wrote 170 Medicare Part D claims totaling $111K in drug costs for 49 beneficiaries.
Where is KAY WALKER, M.D. located?
KAY WALKER, M.D. is located at 1121 E 3900 S, SALT LAKE CITY, UT, 84124. Phone: (801) 281-1300.
What is KAY WALKER, M.D.'s NPI number?
KAY WALKER, M.D.'s National Provider Identifier (NPI) is 1083608095, issued on 09/06/2005.
Does KAY WALKER, M.D. prescribe more brand-name or generic drugs?
KAY WALKER, M.D.'s prescribing is 48% brand-name and 52% generic drugs by claim count, with $105K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does KAY WALKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KAY WALKER, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Montelukast Sodium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAY WALKER, M.D. accept Medicare?
KAY WALKER, M.D. appears in CMS Medicare data with 170 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAY WALKER, M.D.'s credentials?
KAY WALKER, M.D.'s NPI is 1083608095 with credentials M.D.. 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