Doctor profile · Federal record

Dr. William Kubaska, M.D.

Internal Medicine Physician · Denver, CO

  • NPI 1548345101
  • MIPS 14.9 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4545 E 9Th Ave, Suite 370
Denver, CO 802203901
(303) 320-7340
fax (303) 320-7341

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
March 17, 2008
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Colorado #35530
Medicaid
CO #01355304

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548345101. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,487
Distinct HCPCS
10
Medicare allowed
$98,158
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 410 255 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 324 173 $129
81002 Urinalysis, manual test 198 172 $3
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 175 175 $130
G0008 Administration of influenza virus vaccine 77 77 $31
90662 Influenza vaccine split virus, preservative free 76 76 $72
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 66 53 $24
99213 Established patient office or other outpatient visit, 20-29 minutes 66 51 $91
99215 Established patient office or other outpatient visit, 40-54 minutes 35 34 $180
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 34 33 $15

In context: peer comparison

Among 78 peers in Denver Internal Medicine Physician, average services per provider: 111. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$17
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 1 $17.01

By nature of payment

Food and Beverage
$17

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,866
Patients
733
Total drug cost
$144,335
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 560 148 $5,825
Levothyroxine Sodium Generic 363 90 $5,832
Amlodipine Besylate Generic 305 76 $2,191
Lisinopril Generic 219 61 $1,757
Zolpidem Tartrate Generic 165 35 $1,005
Losartan Potassium Generic 144 43 $2,812
Hydrochlorothiazide Generic 143 38 $550
Escitalopram Oxalate Generic 140 35 $2,063
Trazodone Hcl Generic 129 30 $1,578
Rosuvastatin Calcium Generic 125 33 $1,854

Frequently asked questions

Auto-generated from federal data
What is Dr. William Kubaska's medical specialty?
Dr. William Kubaska practices Internal Medicine Physician in Denver, CO.
Where does Dr. William Kubaska practice?
Dr. William Kubaska practices at 4545 E 9Th Ave, Denver, CO 802203901. Office phone: 3033207340.
What is Dr. William Kubaska's NPI?
Dr. William Kubaska's National Provider Identifier (NPI) is 1548345101, issued by NPPES.
What procedures does Dr. William Kubaska commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Urinalysis, manual test (HCPCS 81002). Source: CMS Medicare Physician & Other Practitioners file.