2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1811004161 MD PHD
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JOSEPH ALISKY, MD PHD

Geriatric Medicine (Internal Medicine) Physician in AURORA, Colorado. 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
5K
Medicare Part D claims · 283 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
What the federal data reveals: JOSEPH ALISKY, MD PHD is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in AURORA, Colorado with a Medicare Part D prescribing footprint of 5K claims across 283 beneficiaries .

What stands out: JOSEPH ALISKY, MD PHD filed 5,408 Medicare Part D claims in 2023 across AURORA, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOSEPH ALISKY, MD PHD 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).

JOSEPH ALISKY, MD PHD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/24/2006

NPI 1811004161

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

5,408 22% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Colorado

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

Colorado providers

Geriatric Medicine (Internal Medicine) Physician share within Colorado

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

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Internal Medicine) 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).

JOSEPH ALISKY, MD PHD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in AURORA, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD PHD. NPI: 1811004161. 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.

JOSEPH ALISKY, MD PHD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD PHD credentials at 12250 E ILIFF AVE, AURORA, CO, 80014, with a listed phone of (303) 306-4321. NPI 1811004161 was issued on 08/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALISKY 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 5,408 prescription claims written by this provider, covering 283 Medicare beneficiaries and totaling roughly $396K in drug spend, with an opioid prescribing rate of 3.3%. 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.

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

12250 E ILIFF AVE
AURORA, CO 80014

Provider Details

NPI 1811004161
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD PHD
Gender Male
NPI Issued 08/24/2006

Hospital and facility affiliations

Facilities where JOSEPH ALISKY, MD PHD 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.

LEGACY HEALTHCARE SERVICES INC
DENVER, CO
PHYSICIAN HOUSECALLS LLC
LAKEWOOD, CO

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

5,408
Total Claims
$396K
Total Drug Cost
283
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,481
Total Day Supply
181,115
Generic Drug Cost
$145K
Opioid Claims
180 (3.3% rate)
Antibiotic Claims
151

Patient Demographics

Average Patient Age
81.6 years
Avg HCC Risk Score
2.62
Gender Split
71% female / 29% male
Age Distribution
<65: 21, 65-74: 34, 75-84: 98, 85+: 130

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
238
Levothyroxine Sodium
201
Donepezil Hcl
188
Sertraline Hcl
170
Eliquis
Apixaban
156
Amlodipine Besylate
140
Tamsulosin Hcl
139
Memantine Hcl
135
Losartan Potassium
118
Omeprazole
113

* 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 JOSEPH ALISKY, MD PHD 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

JOSEPH ALISKY, MD PHD's 5,408 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Colorado

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

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

Frequently Asked Questions

What is JOSEPH ALISKY, MD PHD's specialty?
JOSEPH ALISKY, MD PHD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in AURORA, Colorado. Credentials: MD PHD.
How much does JOSEPH ALISKY, MD PHD prescribe under Medicare Part D?
In 2023, JOSEPH ALISKY, MD PHD wrote 5,408 Medicare Part D claims totaling $396K in drug costs for 283 beneficiaries.
Where is JOSEPH ALISKY, MD PHD located?
JOSEPH ALISKY, MD PHD is located at 12250 E ILIFF AVE, AURORA, CO, 80014. Phone: (303) 306-4321.
What is JOSEPH ALISKY, MD PHD's NPI number?
JOSEPH ALISKY, MD PHD's National Provider Identifier (NPI) is 1811004161, issued on 08/24/2006.
Does JOSEPH ALISKY, MD PHD prescribe opioids?
Yes, JOSEPH ALISKY, MD PHD had 180 opioid claims in 2023 with an opioid prescribing rate of 3.3%.
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 JOSEPH ALISKY, MD PHD prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH ALISKY, MD PHD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Donepezil Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSEPH ALISKY, MD PHD accept Medicare?
JOSEPH ALISKY, MD PHD appears in CMS Medicare data with 5,408 Part D claims and 283 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH ALISKY, MD PHD's credentials?
JOSEPH ALISKY, MD PHD's NPI is 1811004161 with credentials MD PHD. 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