Doctor profile · Federal record
Dr. Constantine Tsamasfyros, M.D.
Family Medicine Physician (CMS: Family Practice) · Denver, CO
- NPI 1114989332
- Accepts Medicare
- 56 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
128 Steele St, #300
Denver, CO 802065219
(303) 322-2005
fax (303) 322-4408
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- April 27, 2017
- Year of graduation
- 1970 — 56 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Colorado #17165
- Medicaid
- CO #01171651
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114989332. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
560
Distinct HCPCS
2
Medicare allowed
$71,992
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 527 | 81 | $128 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 33 | 33 | $130 |
In context: peer comparison
Among 63 peers in this city , average services per provider: 97. This provider delivers 5.8× the peer median.Open Payments
Industry payments received
All-time total
$1,149
Transactions
54
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 17 | $242.68 | |
| ABBVIE INC. | 5 | $229.06 | |
| GlaxoSmithKline, LLC. | 8 | $159.86 | |
| AstraZeneca Pharmaceuticals LP | 8 | $145.12 | |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | 4 | $80.69 | |
| SHIELD THERAPEUTICS INC | 1 | $64.43 | |
| Lilly USA, LLC | 2 | $40.25 | |
| Astellas Pharma US Inc | 1 | $33.12 | |
| Novo Nordisk Inc | 2 | $30.50 | |
| Gilead Sciences, Inc. | 1 | $26.94 | |
| Neurocrine Biosciences, Inc. | 1 | $24.51 | |
| Teva Pharmaceuticals USA, Inc. | 1 | $21.08 | |
| Otsuka America Pharmaceutical, Inc. | 1 | $19.23 | |
| Janssen Biotech, Inc. | 1 | $16.89 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $14.55 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,932
Patients
602
Total drug cost
$25,762
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 274 | 94 | $3,291 |
| Oxycodone Hcl | Generic | 182 | 23 | $2,118 |
| Amlodipine Besylate | Generic | 162 | 53 | $1,242 |
| Potassium Chloride | Generic | 159 | 51 | $1,576 |
| Losartan Potassium | Generic | 148 | 46 | $3,377 |
| Lisinopril | Generic | 134 | 44 | $1,037 |
| Famotidine | Generic | 124 | 53 | $2,838 |
| Metformin Hcl | Generic | 108 | 39 | $1,487 |
| Zolpidem Tartrate | Generic | 108 | 19 | $1,163 |
| Gabapentin | Generic | 96 | 18 | $1,567 |
Frequently asked questions
What is Dr. Constantine Tsamasfyros's medical specialty?
Dr. Constantine Tsamasfyros practices Family Medicine Physician in Denver, CO.
Where does Dr. Constantine Tsamasfyros practice?
Dr. Constantine Tsamasfyros practices at 128 Steele St, Denver, CO 802065219. Office phone: 3033222005.
What is Dr. Constantine Tsamasfyros's NPI?
Dr. Constantine Tsamasfyros's National Provider Identifier (NPI) is 1114989332, issued by NPPES.
Does Dr. Constantine Tsamasfyros accept Medicare assignment?
Yes. Dr. Constantine Tsamasfyros accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Constantine Tsamasfyros commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.