Doctor profile · Federal record
Dr. Alfred Nelson, MD
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Student in an Organized Health Care Education/Training Program · Internal Medicine Physician · Saint Peters, MO
- NPI 1518329770
- Accepts Medicare
- MIPS 78.0 / 100 · 2023
- 14 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
70 Jungermann Cir Ste 201
Saint Peters, MO 633761619
(636) 916-9615 - Additional location
-
2520 N Orange Ave Ste 100
Orlando, FL 328044638
(407) 599-6460 - Additional location
-
4500 San Pablo RD S
Jacksonville, FL 32224
(904) 953-2511 - Additional location
-
1225 South Grand Boulevard
Saint Louis, MO 631954638
(314) 257-3760 - Additional location
-
9500 Euclid Ave
Cleveland, OH 441950001
(216) 444-2200 - Mailing address
-
Po Box 959354
Saint Louis, MO 631950001
Show 2 more locations
Credentials & registration
- NPI registered
- March 2016 — 10 yrs on file
- Profile last updated
- September 17, 2025
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Missouri #20240137136 · Florida #ME138983
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518329770. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
486
Distinct HCPCS
9
Medicare allowed
$61,551
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 192 | 117 | $120 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 62 | 61 | $99 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 59 | 57 | $132 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 58 | 56 | $175 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 42 | 41 | $109 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 22 | 21 | $172 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 19 | 16 | $80 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 18 | 17 | $182 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 14 | 13 | $85 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 50. This provider delivers 9.7× the peer median.Open Payments
Industry payments received
All-time total
$29
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, Inc. | 1 | $28.96 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Alfred Nelson's medical specialty?
Dr. Alfred Nelson practices Gastroenterology Physician in Saint Peters, MO.
Where does Dr. Alfred Nelson practice?
Dr. Alfred Nelson practices at 70 Jungermann Cir Ste 201, Saint Peters, MO 633761619. Office phone: 6369169615.
What is Dr. Alfred Nelson's NPI?
Dr. Alfred Nelson's National Provider Identifier (NPI) is 1518329770, issued by NPPES.
Does Dr. Alfred Nelson accept Medicare assignment?
Yes. Dr. Alfred Nelson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alfred Nelson commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.