2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1124059837 M.D., PH.D
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PHILIP KITHAS, M.D., PH.D

Geriatric Medicine (Internal Medicine) Physician 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
1K
Medicare Part D claims · 85 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.0664/100
▲ 9 pts above national avg 83.1 · [object Object]
What the federal data reveals: PHILIP KITHAS, M.D., PH.D is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in SALT LAKE CITY, Utah with a Medicare Part D prescribing footprint of 1K claims across 85 beneficiaries — 9% brand-name prescribing . Their CMS MIPS Final Score of 92.0664/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: PHILIP KITHAS, M.D., PH.D reported a CMS MIPS final score of 92.0664 out of 100, above the 83.1 national average, and filed 1,169 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

PHILIP KITHAS, M.D., PH.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

PHILIP KITHAS, M.D., PH.D at a glance

High performer (top quartile)

NPI registry status

Active

Issued 07/05/2006

NPI 1124059837

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

1,169 74% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

MIPS final score

92.0664/100 8.966400000000007% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Utah

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Utah providers

Utah providers

Geriatric Medicine (Internal Medicine) Physician share within Utah

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Utah

Medicare quality performance — MIPS

PHILIP KITHAS, M.D., PH.D's 2023 MIPS final score plotted against the Geriatric Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
92.0664/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Geriatric Medicine (Internal Medicine) Physician) — 92.0664/100 vs national avg 83.1

0%100%National avg83%92.1%
MIPS final score (Geriatric Medicine (Internal Medicine) Physician) — 92.0664/100 vs national avg 83.1

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).

PHILIP KITHAS, M.D., PH.D is a Geriatric Medicine (Internal Medicine) Physician provider practicing in SALT LAKE CITY, Utah, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., PH.D. NPI: 1124059837. 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.

PHILIP KITHAS, M.D., PH.D appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D., PH.D credentials at 500 FOOTHILL BLVD, SALT LAKE CITY, UT, 84148, with a listed phone of (801) 582-1565. NPI 1124059837 was issued on 07/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KITHAS 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 1,169 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $76K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 2.2%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.0664/100 for the 2023 performance year (Quality 85.5753), compared with the national average of 83.1.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

500 FOOTHILL BLVD
SALT LAKE CITY, UT 84148

Provider Details

NPI 1124059837
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials M.D., PH.D
Gender Male
NPI Issued 07/05/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

92.0664
Final Score
Avg: 83.1
85.5753
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where PHILIP KITHAS, M.D., PH.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.

UNIVERSITY OF UTAH ADULT SERVICES
SALT LAKE CITY, 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 · Generic-heavy

PHILIP KITHAS, M.D., PH.D — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,169 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.

1,169
Total Claims
$76K
Total Drug Cost
85
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,050
Total Day Supply
59,587
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$57K
Generic Drug Cost
$19K
Opioid Claims
26 (2.2% rate)

Patient Demographics

Average Patient Age
79.9 years
Avg HCC Risk Score
1.44
Gender Split
49% female / 51% male
Age Distribution
<65: 0, 65-74: 22, 75-84: 36, 85+: 27

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
127
Losartan Potassium
61
Levothyroxine Sodium
59
Amlodipine Besylate
57
Lisinopril
44
Rosuvastatin Calcium
44
Omeprazole
38
Duloxetine Hcl
37
Allopurinol
35
Escitalopram Oxalate
33

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

Geriatric Medicine (Internal Medicine) Physician Overview

How PHILIP KITHAS, M.D., PH.D fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

PHILIP KITHAS, M.D., PH.D's 1,169 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Utah

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

Compare Geriatric Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is PHILIP KITHAS, M.D., PH.D's specialty?
PHILIP KITHAS, M.D., PH.D specializes in Geriatric Medicine (Internal Medicine) Physician and practices in SALT LAKE CITY, Utah. Credentials: M.D., PH.D.
How much does PHILIP KITHAS, M.D., PH.D prescribe under Medicare Part D?
In 2023, PHILIP KITHAS, M.D., PH.D wrote 1,169 Medicare Part D claims totaling $76K in drug costs for 85 beneficiaries.
What is PHILIP KITHAS, M.D., PH.D's Medicare quality score?
PHILIP KITHAS, M.D., PH.D has a CMS MIPS Final Score of 92.0664/100 (Quality: 85.5753). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is PHILIP KITHAS, M.D., PH.D located?
PHILIP KITHAS, M.D., PH.D is located at 500 FOOTHILL BLVD, SALT LAKE CITY, UT, 84148. Phone: (801) 582-1565.
What is PHILIP KITHAS, M.D., PH.D's NPI number?
PHILIP KITHAS, M.D., PH.D's National Provider Identifier (NPI) is 1124059837, issued on 07/05/2006.
Does PHILIP KITHAS, M.D., PH.D prescribe more brand-name or generic drugs?
PHILIP KITHAS, M.D., PH.D's prescribing is 9% brand-name and 91% generic drugs by claim count, with $57K in brand drug costs.
Does PHILIP KITHAS, M.D., PH.D prescribe opioids?
Yes, PHILIP KITHAS, M.D., PH.D had 26 opioid claims in 2023 with an opioid prescribing rate of 2.2%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does PHILIP KITHAS, M.D., PH.D prescribe most often?
Based on 2023 Medicare Part D data, PHILIP KITHAS, M.D., PH.D's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PHILIP KITHAS, M.D., PH.D accept Medicare?
PHILIP KITHAS, M.D., PH.D appears in CMS Medicare data with 1,169 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PHILIP KITHAS, M.D., PH.D's credentials?
PHILIP KITHAS, M.D., PH.D's NPI is 1124059837 with credentials M.D., PH.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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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