Doctor profile · Federal record
Dr. Warren Chin, MD
Physical Medicine & Rehabilitation Physician (CMS: Physical Medicine and Rehabilitation) · Santa Rosa, CA
- NPI 1740390681
- Accepts Medicare
- 27 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2448 Guerneville RD
Santa Rosa, CA 954034175
(707) 575-5000
fax (707) 575-5002
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- February 26, 2018
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 208100000X — NUCC code
- State license (1)
- California #A75147
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740390681. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
459
Distinct HCPCS
1
Medicare allowed
$63,685
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 459 | 52 | $139 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 122. This provider delivers 3.8× the peer median.Open Payments
Industry payments received
All-time total
$278
Transactions
16
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 11 | $183.23 | |
| Collegium Pharmaceutical, Inc. | 2 | $34.73 | |
| Otsuka America Pharmaceutical, Inc. | 1 | $21.50 | |
| GlaxoSmithKline, LLC. | 1 | $20.48 | |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $18.51 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,505
Patients
112
Total drug cost
$136,210
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 300 | 32 | $10,944 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 258 | 31 | $11,073 |
| Morphine Sulfate Er (Morphine Sulfate) | Brand | 156 | 15 | $13,760 |
| Gabapentin | Generic | 130 | 18 | $3,359 |
| Hydromorphone Hcl | Generic | 85 | 0 | $5,632 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 80 | 16 | $4,543 |
| Zolpidem Tartrate | Generic | 73 | 0 | $550 |
| Tizanidine Hcl | Generic | 66 | 0 | $943 |
| Baclofen | Generic | 64 | 0 | $554 |
| Duloxetine Hcl | Generic | 55 | 0 | $691 |
Frequently asked questions
What is Dr. Warren Chin's medical specialty?
Dr. Warren Chin practices Physical Medicine & Rehabilitation Physician in Santa Rosa, CA.
Where does Dr. Warren Chin practice?
Dr. Warren Chin practices at 2448 Guerneville RD, Santa Rosa, CA 954034175. Office phone: 7075755000.
What is Dr. Warren Chin's NPI?
Dr. Warren Chin's National Provider Identifier (NPI) is 1740390681, issued by NPPES.
Does Dr. Warren Chin accept Medicare assignment?
Yes. Dr. Warren Chin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Warren Chin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.