Doctor profile · Federal record
Dr. John Barnett, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Longmont, CO
- NPI 1952341273
- Accepts Medicare
- MIPS 81.5 / 100 · 2023
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1760 E Ken Pratt Blvd Ste 302
Longmont, CO 805045311
(303) 684-1900
fax (303) 684-1925 - Mailing address
-
7951 E Maplewood Ave, Suite 300
Greenwood Village, CO 80111
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 6, 2023
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Colorado #44274
- Medicaid
- CO #65187741
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1952341273. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
52,317
Distinct HCPCS
10
Medicare allowed
$831,239
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1453 |
Injection, fosaprepitant, 1 mg | 10,800 | 29 | $0 | |
J9271 |
Injection, pembrolizumab, 1 mg | 9,400 | 16 | $54 | |
J9267 |
Injection, paclitaxel, 1 mg | 8,070 | 21 | $0 | |
J1756 |
Injection, iron sucrose, 1 mg | 7,000 | 16 | $0 | |
J9155 |
Injection, degarelix, 1 mg | 2,720 | 14 | $4 | |
36415 |
Insertion of needle into vein for collection of blood sample | 1,596 | 373 | $8 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,388 | 355 | $8 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 1,352 | 51 | $0 | |
Q5116 |
Injection, trastuzumab-qyyp, biosimilar, (trazimera), 10 mg | 1,127 | 11 | $26 | |
80053 |
Blood test, comprehensive group of blood chemicals | 1,103 | 307 | $10 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 834. This provider delivers 63× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,076
Patients
277
Total drug cost
$217,074
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 150 | 38 | $1,700 |
| Abiraterone Acetate | Generic | 133 | 17 | $74,147 |
| Gabapentin | Generic | 115 | 31 | $1,235 |
| Dexamethasone | Generic | 94 | 41 | $1,623 |
| Eliquis (Apixaban) | Brand | 85 | 23 | $84,037 |
| Acyclovir | Generic | 73 | 18 | $1,442 |
| Levothyroxine Sodium | Generic | 72 | 20 | $785 |
| Warfarin Sodium | Generic | 59 | 0 | $993 |
| Tamoxifen Citrate | Generic | 51 | 13 | $1,187 |
| Prochlorperazine Maleate | Generic | 47 | 30 | $681 |
Hospital affiliations
Frequently asked questions
What is Dr. John Barnett's medical specialty?
Dr. John Barnett practices Hematology & Oncology Physician in Longmont, CO.
Where does Dr. John Barnett practice?
Dr. John Barnett practices at 1760 E Ken Pratt Blvd Ste 302, Longmont, CO 805045311. Office phone: 3036841900.
What is Dr. John Barnett's NPI?
Dr. John Barnett's National Provider Identifier (NPI) is 1952341273, issued by NPPES.
Does Dr. John Barnett accept Medicare assignment?
Yes. Dr. John Barnett accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Barnett commonly perform?
Top Medicare-reported procedures in 2023: Injection, fosaprepitant, 1 mg (HCPCS J1453); Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, paclitaxel, 1 mg (HCPCS J9267). Source: CMS Medicare Physician & Other Practitioners file.