Doctor profile · Federal record
Dr. David Mast, MD
Internal Medicine Physician (CMS: Internal Medicine) · Duluth, MN
- NPI 1912958331
- Accepts Medicare
- 41 yrs in practice
- Male
- No sanctions
Practice & contact
- Primary practice
-
1001 E Superior St, Ste L401
Duluth, MN 558022207
(218) 249-7960
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Minnesota #30485
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1912958331. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
531
Distinct HCPCS
8
Medicare allowed
$50,084
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 143 | 77 | $95 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 102 | 33 | $116 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 64 | 64 | $129 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 60 | 30 | $77 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 57 | 46 | $64 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 56 | 55 | $34 | |
99239 |
Hospital discharge day management, more than 30 minutes | 37 | 27 | $112 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 12 | 12 | $169 |
In context: peer comparison
Among 15 peers in Duluth Internal Medicine Physician, average services per provider: 76. This provider delivers 7.0× the peer median.Open Payments
Industry payments received
All-time total
$213
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 2 | $212.75 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,872
Patients
1,074
Total drug cost
$73,480
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 409 | 116 | $11,017 |
| Atorvastatin Calcium | Generic | 401 | 114 | $8,911 |
| Lisinopril | Generic | 396 | 109 | $5,458 |
| Amlodipine Besylate | Generic | 319 | 97 | $5,031 |
| Furosemide | Generic | 250 | 76 | $2,156 |
| Omeprazole | Generic | 248 | 69 | $5,551 |
| Losartan Potassium | Generic | 237 | 64 | $4,377 |
| Levothyroxine Sodium | Generic | 235 | 61 | $4,997 |
| Simvastatin | Generic | 231 | 54 | $3,250 |
| Rosuvastatin Calcium | Generic | 225 | 68 | $6,629 |
Hospital affiliations
Frequently asked questions
What is Dr. David Mast's medical specialty?
Dr. David Mast practices Internal Medicine Physician in Duluth, MN.
Where does Dr. David Mast practice?
Dr. David Mast practices at 1001 E Superior St, Duluth, MN 558022207. Office phone: 2182497960.
What is Dr. David Mast's NPI?
Dr. David Mast's National Provider Identifier (NPI) is 1912958331, issued by NPPES.
Does Dr. David Mast accept Medicare assignment?
Yes. Dr. David Mast accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Mast commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.