Physician Profile
Gervacio D Diaz, M.D.
Unclaimed ProfileAbout Dr. Diaz
Gervacio D Diaz, M.D. is a healthcare provider in Modesto, CA specializing in internal medicine. Medicare claims data shows Gervacio provided 1,189 services to 712 patients.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (209) 529-8506
- Email not available
Practice Locations
2013 COFFEE RD
Modesto, CA 95355
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
1,189 services · 712 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine, trivalent derived from cell cultures | Treatment | 90661 |
105 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
438 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
147 |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office visit | 99454 |
110 |
| Administration of influenza virus vaccine | Billing code | G0008 |
105 |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
102 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
85 |
| Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | Office visit | 99458 |
56 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
28 |
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99348 |
13 |
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.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internal medicines in Modesto 8
Same specialty, same city.
Trained at Other 7
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1988 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine, trivalent derived from cell cultures 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Diaz specialize in?
Dr. Diaz is an internal medicine in Modesto, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Diaz located?
Dr. Diaz is listed at 2013 COFFEE RD, Modesto, CA 95355. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Diaz's phone number?
The number on file is (209) 529-8506. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Diaz?
Dr. Diaz's National Provider Identifier is 1700835451. 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. Diaz go to medical school?
Dr. Diaz attended Other, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Diaz have?
Dr. Diaz has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Diaz do most often?
According to Medicare billing data, Dr. Diaz provides treatments such as influenza vaccine, trivalent derived from cell cultures, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Diaz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Diaz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.