Doctor profile · Federal record
Dr. Adam Giermasz, M.D., PHD
Hematology & Oncology Physician (CMS: Hematology) · Sacramento, CA
- NPI 1831374644
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2000 Stockton Blvd, Suite 202
Sacramento, CA 958172227
(916) 734-3461
fax (916) 734-3591 - Mailing address
-
4501 X St, Suite 3016, Uc Davis Comprehensive Cancer Center,
Sacramento, CA 95817
Credentials & registration
- NPI registered
- December 2007 — 19 yrs on file
- Profile last updated
- September 18, 2019
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- California #A103790
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831374644. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
306
Distinct HCPCS
8
Medicare allowed
$39,345
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 71 | 59 | $101 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 49 | 31 | $123 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 43 | 41 | $135 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 41 | 41 | $184 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 30 | 27 | $149 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 30 | 19 | $82 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 28 | 27 | $180 | |
99448 |
Telephone or internet assessment with verbal and written report by consulting physician, 21-30 minutes | 14 | 14 | $56 |
In context: peer comparison
Among 14 peers in Sacramento Hematology & Oncology Physician, average services per provider: 120. This provider delivers 2.6× the peer median.Open Payments
Industry payments received
All-time total
$90,033
Transactions
66
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| BioMarin Pharmaceutical INC. | 13 | $38,226.16 | |
| Alexion Pharmaceuticals, INC. | 12 | $19,016.44 | |
| Genzyme Corporation | 12 | $14,129.74 | |
| Hema Biologics, LLC | 18 | $12,440.24 | |
| Sanofi-Aventis U.S. LLC | 2 | $3,539.20 | |
| Csl Behring | 4 | $2,264.00 | |
| Genentech USA, INC. | 4 | $262.24 | |
| Regeneron Pharmaceuticals, INC. | 1 | $155.38 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
212
Patients
38
Total drug cost
$207,169
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 149 | 38 | $169,717 |
| Xarelto (Rivaroxaban) | Brand | 19 | 0 | $26,160 |
| Enoxaparin Sodium | Generic | 16 | 0 | $10,379 |
| Hydroxyurea | Generic | 16 | 0 | $634 |
| Celecoxib | Generic | 12 | 0 | $278 |
Hospital affiliations
Frequently asked questions
What is Dr. Adam Giermasz's medical specialty?
Dr. Adam Giermasz practices Hematology & Oncology Physician in Sacramento, CA.
Where does Dr. Adam Giermasz practice?
Dr. Adam Giermasz practices at 2000 Stockton Blvd, Suite 202, Sacramento, CA 958172227. Office phone: 9167343461.
What is Dr. Adam Giermasz's NPI?
Dr. Adam Giermasz's National Provider Identifier (NPI) is 1831374644, issued by NPPES.
Does Dr. Adam Giermasz accept Medicare assignment?
Yes. Dr. Adam Giermasz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adam Giermasz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.