Physician Profile
Unclaimed ProfileAbout MCNEIL
John William McNeil, M.D. is a healthcare provider in Merced, CA specializing in family practice. John trained at University of California, San Diego School of Medicine, graduating in 2015. John is also listed as specializing in family medicine, student in an organized health care education program, and emergency medicine. According to Medicare claims data, John cared for 517 Medicare patients across 533 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (209) 564-5000
- Email not available
Practice Locations
333 MERCY AVE
Merced, CA 95340
Procedures Most Often Billed to Medicare
533 services · 517 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
129 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
150 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
80 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
55 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
30 |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | Lab test | 87635 |
24 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
21 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 |
| Automated urinalysis test | Lab test | 81003 |
15 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family practices at this location 6
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other family practices in Merced 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of California, San Diego School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at University of California, San Diego School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. McNeil?
Dr. McNeil is a family practice in Merced, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
What is Dr. McNeil's address?
Dr. McNeil is listed at 333 MERCY AVE, Merced, CA 95340. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. McNeil?
The number on file is (209) 564-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. McNeil's NPI number?
Dr. McNeil's National Provider Identifier is 1003340126. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. McNeil train?
Dr. McNeil attended University of California, San Diego School of Medicine, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. McNeil been practicing?
Dr. McNeil has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. McNeil perform?
According to Medicare billing data, Dr. McNeil provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. McNeil confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. McNeil. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.