Doctor profile · Federal record
Dr. Nathaniel Woodruff, M.D., PHD, FACC
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Grass Valley, CA
- NPI 1275623191
- Accepts Medicare
- 39 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
150 Catherine Ln Ste F
Grass Valley, CA 959455719
(530) 477-8358
fax (530) 477-2015 - Mailing address
-
3400 Data Dr, Attn: Credentialing/Payer Enrollment
Rancho Cordova, CA 956707956
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 26, 2019
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- California #C55840
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275623191. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
405
Distinct HCPCS
5
Medicare allowed
$51,813
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 210 | 109 | $116 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 101 | 98 | $168 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 48 | 35 | $78 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 35 | 28 | $137 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 11 | 11 | $178 |
In context: peer comparison
Among 4 peers in Grass Valley Cardiovascular Disease Physician, average services per provider: 94. This provider delivers 4.3× the peer median.Open Payments
Industry payments received
All-time total
$19
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 1 | $19.41 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
204
Patients
60
Total drug cost
$26,537
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Rosuvastatin Calcium | Generic | 36 | 18 | $823 |
| Atorvastatin Calcium | Generic | 32 | 17 | $544 |
| Amlodipine Besylate | Generic | 21 | 11 | $227 |
| Isosorbide Mononitrate ER (Isosorbide Mononitrate) | Brand | 21 | 0 | $530 |
| Metoprolol Succinate | Generic | 21 | 14 | $543 |
| Eliquis (Apixaban) | Brand | 19 | 0 | $22,686 |
| Carvedilol | Generic | 14 | 0 | $202 |
| Lisinopril | Generic | 14 | 0 | $149 |
| Bumetanide | Generic | 13 | 0 | $511 |
| Olmesartan Medoxomil | Generic | 13 | 0 | $322 |
Frequently asked questions
What is Dr. Nathaniel Woodruff's medical specialty?
Dr. Nathaniel Woodruff practices Cardiovascular Disease Physician in Grass Valley, CA.
Where does Dr. Nathaniel Woodruff practice?
Dr. Nathaniel Woodruff practices at 150 Catherine Ln Ste F, Grass Valley, CA 959455719. Office phone: 5304778358.
What is Dr. Nathaniel Woodruff's NPI?
Dr. Nathaniel Woodruff's National Provider Identifier (NPI) is 1275623191, issued by NPPES.
Does Dr. Nathaniel Woodruff accept Medicare assignment?
Yes. Dr. Nathaniel Woodruff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathaniel Woodruff commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.