Alfred Johnson, MD
NPI 1174508865 · Surgery Physician · Merced, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alfred Johnson, MD is a Surgery Physician provider in Merced, CA (NPI 1174508865).
Provider details
- NPI number
- 1174508865
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 184876 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
41 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 29 | $58 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 12 | $119 |
Typical Medicare-allowed amounts for these services range $58–$119 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 1549 Golden Gate AveDos Palos, CA 93620-2329Phone: (209) 392-0022
- 400 W I StLos Banos, CA 93635-3459Phone: (209) 827-9999
- 311 W I StLos Banos, CA 93635-3479Phone: (209) 826-2222
- 311 W I St # BLos Banos, CA 93635-3479Phone: (209) 826-2222
Registry dates
- Enumerated
- 2005-12-14
- Last updated
- 2025-07-21
- Certified
- 2025-07-21
Frequently asked questions
- What is Alfred Johnson's NPI number?
- Alfred Johnson's National Provider Identifier (NPI) is 1174508865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alfred Johnson's specialty?
- Alfred Johnson is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Alfred Johnson located?
- Alfred Johnson's practice location on file with NPPES is 240 E 13th St Ste C, Merced, CA 95341-6234.
- What is Alfred Johnson's phone number?
- The practice phone number listed in the NPPES registry for Alfred Johnson is (209) 723-2799.
- Does Alfred Johnson accept Medicare?
- Alfred Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alfred Johnson's NPI active?
- Yes — Alfred Johnson's NPI (1174508865) is active in the NPPES registry as of the last update on 2025-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.