Doctor profile · Federal record
Dr. David Diep, DO
Surgery Physician (CMS: General Surgery) · Chelsea, MI
- NPI 1487815197
- Accepts Medicare
- 18 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
14650 E Old US Highway 12, Suite 303
Chelsea, MI 48118
(734) 475-4177
fax (734) 475-3520 - Mailing address
-
24 Frank Lloyd Wright Drive, Suite J2000
Ann Arbor, MI 48105
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- November 21, 2025
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Michigan #5101017754
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1487815197. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
261
Distinct HCPCS
10
Medicare allowed
$39,274
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 74 | 73 | $242 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 46 | 46 | $133 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 36 | 36 | $128 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 23 | 22 | $95 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 16 | 15 | $49 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 14 | 13 | $54 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 14 | 14 | $158 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $162 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 13 | 13 | $87 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 12 | 12 | $124 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 28. This provider delivers 9.3× the peer median.Open Payments
Industry payments received
All-time total
$24
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Braintree Laboratories, Inc. | 1 | $23.95 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
51
Patients
50
Total drug cost
$233
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 22 | 21 | $45 |
| Ibuprofen | Generic | 17 | 17 | $40 |
| Ondansetron Odt (Ondansetron) | Brand | 12 | 12 | $147 |
Hospital affiliations
Frequently asked questions
What is Dr. David Diep's medical specialty?
Dr. David Diep practices Surgery Physician in Chelsea, MI.
Where does Dr. David Diep practice?
Dr. David Diep practices at 14650 E Old US Highway 12, Chelsea, MI 48118. Office phone: 7344754177.
What is Dr. David Diep's NPI?
Dr. David Diep's National Provider Identifier (NPI) is 1487815197, issued by NPPES.
Does Dr. David Diep accept Medicare assignment?
Yes. Dr. David Diep accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Diep commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.