Physician Profile
Unclaimed ProfileAbout GRASSO
Based in Upland, CA, John Grasso, M.D. is listed in the NPI registry under anesthesiology. John graduated from University of Washington School of Medicine in 1983. Medicare claims data shows John provided 298 services to 264 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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (909) 920-4851
- Email not available
Practice Locations
999 SAN BERNARDINO RD
Upland, CA 91786
Procedures Most Often Billed to Medicare
298 services · 264 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Anesthesia for lens surgery | Anaesthesia | 00142 |
177 |
| Anesthesia for other procedure on eye | Anaesthesia | 00140 |
104 |
| Anesthesia for retinal surgery | Anaesthesia | 00145 |
17 |
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 anesthesiology specialists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 26 related providers in 4 groups
Other anesthesiology specialists in Upland 2
Same specialty, same city.
Trained at University of Washington School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at University of Washington School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Anesthesia for lens surgery 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Grasso specialize in?
Dr. Grasso is an anesthesiology in Upland, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where is Dr. Grasso located?
Dr. Grasso is listed at 999 SAN BERNARDINO RD, Upland, CA 91786. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Grasso's phone number?
The number on file is (909) 920-4851. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Grasso?
Dr. Grasso's National Provider Identifier is 1710921127. 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. Grasso go to medical school?
Dr. Grasso attended University of Washington School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Grasso have?
Dr. Grasso has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Grasso do most often?
According to Medicare billing data, Dr. Grasso provides treatments such as anesthesia for lens surgery and anesthesia for other procedure on eye. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Grasso's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grasso. 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.