Doctor profile · Federal record
Dr. Charles Shang, MD
Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Grass Valley, CA
- NPI 1104805902
- Accepts Medicare
- 28 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
136 Glasson Way
Grass Valley, CA 959455706
(530) 272-8452
fax (530) 477-5182 - Mailing address
-
280 Sierra College Dr Ste 205
Grass Valley, CA 959455763
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- June 16, 2023
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Texas #L4709 · Massachusetts #225106
- Medicaid
- TX #157966605
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104805902. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
10,048
Distinct HCPCS
10
Medicare allowed
$980,148
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 3,391 | 949 | $132 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 652 | 128 | $64 | |
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 529 | 112 | $49 | |
99489 |
Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month | 460 | 67 | $73 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 407 | 100 | $75 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 388 | 388 | $134 | |
G0442 |
Annual alcohol misuse screening, 5 to 15 minutes | 381 | 381 | $20 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 378 | 378 | $20 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 352 | 98 | $108 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 350 | 96 | $155 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 168. This provider delivers 60× the peer median.Open Payments
Industry payments received
All-time total
$132
Transactions
6
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Exact Sciences Corporation | 2 | $49.76 | |
| GlaxoSmithKline, LLC. | 2 | $43.77 | |
| Novartis Pharmaceuticals Corporation | 1 | $25.09 | |
| Dexcom, Inc. | 1 | $13.35 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,497
Patients
1,058
Total drug cost
$153,973
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 605 | 197 | $9,346 |
| Spironolactone | Generic | 372 | 125 | $4,537 |
| Gabapentin | Generic | 259 | 94 | $6,220 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 247 | 55 | $6,180 |
| Duloxetine Hcl | Generic | 238 | 71 | $7,375 |
| Trazodone Hcl | Generic | 227 | 59 | $4,114 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 226 | 82 | $3,741 |
| Levothyroxine Sodium | Generic | 216 | 56 | $3,543 |
| Eliquis (Apixaban) | Brand | 209 | 32 | $92,400 |
| Carvedilol | Generic | 196 | 50 | $2,508 |
Hospital affiliations
Frequently asked questions
What is Dr. Charles Shang's medical specialty?
Dr. Charles Shang practices Internal Medicine Physician in Grass Valley, CA.
Where does Dr. Charles Shang practice?
Dr. Charles Shang practices at 136 Glasson Way, Grass Valley, CA 959455706. Office phone: 5302728452.
What is Dr. Charles Shang's NPI?
Dr. Charles Shang's National Provider Identifier (NPI) is 1104805902, issued by NPPES.
Does Dr. Charles Shang accept Medicare assignment?
Yes. Dr. Charles Shang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charles Shang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Chronic care management services (HCPCS 99490); Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439). Source: CMS Medicare Physician & Other Practitioners file.