Doctor profile · Federal record
Dr. Michael Koontz, MD
Internal Medicine Physician (CMS: Medical Oncology) · Monterey, CA
- NPI 1245410588
- Accepts Medicare
- MIPS 96.5 / 100 · 2023
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5 Harris CT Bldg T, 201
Monterey, CA 939405750
(831) 375-4105
fax (831) 655-1277
Credentials & registration
- NPI registered
- November 2007 — 19 yrs on file
- Profile last updated
- July 1, 2014
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A105130
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245410588. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
98,773
Distinct HCPCS
10
Medicare allowed
$1,426,090
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1439 |
Injection, ferric carboxymaltose, 1 mg | 21,000 | 20 | $1 | |
Q0138 |
Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 16,320 | 25 | $1 | |
J9263 |
Injection, oxaliplatin, 0.5 mg | 12,500 | 16 | $0 | |
J9271 |
Injection, pembrolizumab, 1 mg | 11,800 | 20 | $54 | |
J0897 |
Injection, denosumab, 1 mg | 9,540 | 74 | $23 | |
J1453 |
Injection, fosaprepitant, 1 mg | 6,300 | 19 | $0 | |
J0881 |
Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 5,000 | 11 | $3 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 2,398 | 87 | $0 | |
J9171 |
Injection, docetaxel, 1 mg | 2,284 | 11 | $1 | |
Q5106 |
Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 1,870 | 31 | $8 |
In context: peer comparison
Among 12 peers in Monterey Internal Medicine Physician, average services per provider: 533. This provider delivers 185× the peer median.Open Payments
Industry payments received
All-time total
$18
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Myriad Genetic Laboratories, INC. | 1 | $17.85 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
341
Patients
44
Total drug cost
$476,372
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 66 | 19 | $362 |
| Abiraterone Acetate | Generic | 42 | 0 | $116,274 |
| Anastrozole | Generic | 28 | 0 | $399 |
| Procrit (Epoetin Alfa) | Brand | 24 | 0 | $76,200 |
| Prochlorperazine Maleate | Generic | 21 | 13 | $217 |
| Ondansetron Odt (Ondansetron) | Brand | 19 | 0 | $205 |
| Calquence (Acalabrutinib Maleate) | Brand | 18 | 0 | $270,301 |
| Levothyroxine Sodium | Generic | 18 | 0 | $260 |
| Omeprazole | Generic | 17 | 0 | $491 |
| Eliquis (Apixaban) | Brand | 16 | 0 | $10,580 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Koontz's medical specialty?
Dr. Michael Koontz practices Internal Medicine Physician in Monterey, CA.
Where does Dr. Michael Koontz practice?
Dr. Michael Koontz practices at 5 Harris CT Bldg T, Monterey, CA 939405750. Office phone: 8313754105.
What is Dr. Michael Koontz's NPI?
Dr. Michael Koontz's National Provider Identifier (NPI) is 1245410588, issued by NPPES.
Does Dr. Michael Koontz accept Medicare assignment?
Yes. Dr. Michael Koontz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Koontz commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferric carboxymaltose, 1 mg (HCPCS J1439); Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (HCPCS Q0138); Injection, oxaliplatin, 0.5 mg (HCPCS J9263). Source: CMS Medicare Physician & Other Practitioners file.