Doctor profile · Federal record
Dr. DAVID CHAPPELL, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: ENDOCRINOLOGY) · PETALUMA, CA
- NPI 1598732463
- Accepts Medicare
- 47 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
141 LYNCH CREEK WAY, SUITE A
PETALUMA, CA 94954
(707) 762-0001
fax (707) 765-0666
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- July 16, 2010
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #C40326
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598732463. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,907
Distinct HCPCS
10
Medicare allowed
$149,890
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 678 | 121 | $98 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 449 | 146 | $139 | |
36415 |
Insertion of needle into vein for collection of blood sample | 289 | 33 | $8 | |
81002 |
Urinalysis, manual test | 245 | 30 | $3 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 61 | 36 | $16 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 47 | 43 | $192 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 35 | 15 | $36 | |
77080 |
Dxa bone density measurement of hip, pelvis, spine | 29 | 29 | $44 | |
82962 |
Blood glucose (sugar) test performed by hand-held instrument | 23 | 19 | $3 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 20 | 18 | $62 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 158. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$1,791
Transactions
72
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 21 | $545.33 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 6 | $151.50 | |
| PFIZER INC. | 8 | $142.49 | |
| ABBVIE INC. | 6 | $138.94 | |
| Astellas Pharma US Inc | 3 | $132.10 | |
| Xeris Pharmaceuticals, Inc. | 5 | $106.94 | |
| Novo Nordisk Inc | 5 | $97.16 | |
| Bayer Healthcare Pharmaceuticals Inc. | 4 | $85.50 | |
| Amgen Inc. | 3 | $78.93 | |
| Radius Health, Inc. | 3 | $62.70 | |
| Lexicon Pharmaceuticals, Inc. | 2 | $57.83 | |
| Dexcom, Inc. | 2 | $48.09 | |
| Acella Pharmaceuticals, LLC | 2 | $48.05 | |
| Abbott Laboratories | 1 | $28.15 | |
| Alexion Pharmaceuticals, Inc. | 1 | $27.07 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,350
Patients
305
Total drug cost
$372,012
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 212 | 43 | $4,601 |
| Atorvastatin Calcium | Generic | 161 | 37 | $1,809 |
| Mounjaro (Tirzepatide) | Brand | 141 | 29 | $169,128 |
| Potassium Chloride | Generic | 129 | 38 | $5,771 |
| Amlodipine Besylate | Generic | 101 | 18 | $566 |
| Ozempic (Semaglutide) | Brand | 86 | 20 | $116,311 |
| Losartan Potassium | Generic | 74 | 20 | $1,264 |
| Metoprolol Succinate | Generic | 64 | 14 | $1,439 |
| Ursodiol | Generic | 64 | 18 | $5,969 |
| Rosuvastatin Calcium | Generic | 57 | 14 | $2,199 |