Doctor profile · Federal record
Dr. Alfred Johnson, MD
Surgery Physician (CMS: General Surgery) · Surgery Physician · Surgery Physician · Surgery Physician · Merced, CA
- NPI 1174508865
- Accepts Medicare
- MIPS 90.2 / 100 · 2023
- 39 yrs in practice
- Licensed in 4 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 5 locations .
- Primary practice
-
240 E 13Th St Ste C
Merced, CA 953416234
(209) 723-2799
fax (209) 723-2984 - Additional location
-
1549 Golden Gate Ave
Dos Palos, CA 936202329
(209) 392-0022 - Additional location
-
311 W I St
Los Banos, CA 936353479
(209) 826-2222 - Additional location
-
311 W I St # B
Los Banos, CA 936353479
(209) 826-2222 - Additional location
-
400 W I St
Los Banos, CA 936353459
(209) 827-9999
Show 2 more locations
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- July 21, 2025
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State licenses (4)
- California #G88950 · New York #184876 · Georgia #42860 · Mississippi #19035
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174508865. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
235
Distinct HCPCS
8
Medicare allowed
$47,425
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 95 | 58 | $58 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 39 | 38 | $112 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 25 | 25 | $74 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 21 | 21 | $173 | |
47562 |
Removal of gallbladder using an endoscope | 17 | 17 | $610 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 15 | 15 | $130 | |
43281 |
Repair of hernia of muscle at esophagus and stomach using an endoscope | 12 | 12 | $1,487 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 11 | 11 | $173 |
In context: peer comparison
Among 3 peers in Merced Surgery Physician, average services per provider: 47. This provider delivers 5.0× the peer median.Open Payments
Industry payments received
All-time total
$30
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intuitive Surgical, INC. | 1 | $30.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
55
Patients
40
Total drug cost
$479
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tramadol Hcl | Generic | 25 | 25 | $129 |
| Ondansetron Odt (Ondansetron) | Brand | 17 | 15 | $243 |
| Metoclopramide Hcl | Generic | 13 | 0 | $107 |
Frequently asked questions
What is Dr. Alfred Johnson's medical specialty?
Dr. Alfred Johnson practices Surgery Physician in Merced, CA.
Where does Dr. Alfred Johnson practice?
Dr. Alfred Johnson practices at 240 E 13Th St Ste C, Merced, CA 953416234. Office phone: 2097232799.
What is Dr. Alfred Johnson's NPI?
Dr. Alfred Johnson's National Provider Identifier (NPI) is 1174508865, issued by NPPES.
Does Dr. Alfred Johnson accept Medicare assignment?
Yes. Dr. Alfred Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alfred Johnson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99212); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); New patient office or other outpatient visit (HCPCS 99202). Source: CMS Medicare Physician & Other Practitioners file.