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Dr. John Grasso, MD
NPI1710921127PAC ID5597826990
- Medicare services, 2024
- 298
- Medicare patients, 2024
- 267
- Publications
- 28
- Hospital affiliations
- 1
- Industry payments
- $2,227
- Practice address
- 555 N 13th Avenue, Upland, CA 91786
- Practice phone
- Call (909) 982-8846
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pacific Eye Institute - Upland
Surgery Center - Medicare-Certified · Upland, California
Find Dr. Grasso's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Grasso is an anesthesiologist in Upland, California
Dr. Grasso practices at Pacific Eye Institute - Upland in Upland, California.
Dr. Grasso's NPI, 1710921127, was assigned on June 15, 2006. Dr. Grasso graduated from University Of Washington School Of Medicine in 1983. Dr. Grasso's California license number on file is G52753.
NPI and contact details
- NPI
- 1710921127NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597826990
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 982-8846
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Grasso practices at Pacific Eye Institute - Upland in Upland, California
Dr. Grasso's primary practice is Pacific Eye Institute - Upland, at 555 N 13th Avenue, Upland, CA 91786. The practice phone is (909) 982-8846.
- Pacific Eye Institute - Upland555 N 13th Avenue, Upland, CA 91786Phone(909) 982-8846
Source: Dmand AI Affiliation Data
Dr. John Grasso is affiliated with 2 sites of care and 1 medical group
Dr. Grasso's primary practice is Pacific Eye Institute - Upland in Upland, California. Dr. Grasso is also affiliated with San Antonio Regional Hospital. The medical group on file is Allied Anesthesia Medical Group.
Pacific Eye Institute - UplandPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Grasso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grasso practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pacific Eye Institute - Upland | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. John Grasso is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Grasso's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Grasso is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Grasso's licenses on file in 2 states: California and Nevada.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Nevada license
Anesthesiologists near Dr. Grasso
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Grasso billed Medicare for 298 services in 2024
CMS data shows 298 Medicare services from Dr. Grasso across 3 procedure codes in 2024, for 267 Medicare patients. Medicare paid $30,693 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024298
Medicare patients267
Paid by Medicare$30,693
Procedure codes3
Dr. Grasso's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 4082024: 29827%
Dr. Grasso compared with the California median for anesthesiologists, 2024
- Dr. Grasso
- California median
- Medicare services
- 298vs 724.1 times
- Medicare patients
- 267vs 14387% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Grasso's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Grasso?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grasso and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Grasso treated 267 Medicare patients in 2024, average age 74
CMS counts 267 Medicare patients who saw Dr. Grasso in 2024. The largest group is 65 to 74, with 124 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Grasso's median patient age at 71, with 55% women.
Medicare patients, 2024267
Average age74
Average risk score1.50
Also on Medicaid39%
Dr. Grasso's Medicare patients by age, 2024
Dr. Grasso's Medicare patients by sex, 2024
- Women14755%
- Men12045%
Chronic conditions among Dr. Grasso's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes43%
- Arthritis42%
- Chronic kidney disease35%
- Ischemic heart disease28%
- Heart failure20%
- Atrial fibrillation18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grasso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John Grasso takes part in Medicare
Dr. Grasso accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Grasso has 28 publications on record
Dmand AI links 28 papers to Dr. Grasso. The most frequent topics are Iron, Heme and Triturus. Dr. Grasso has published most often in Am J Reprod Immunol.
Papers28
Topics Dr. Grasso writes about most
- Iron
- Heme
- Triturus
- Erythrocytes
- Ferritins
- Globins
- Heptanoates
- Kinetics
Recent publications by Dr. Grasso
Biochem Biophys Res Commun
Aminolevulinic AcidGlutathione TransferaseHeme
Blood ProteinsCell DifferentiationErythroblasts
Anemia, HypochromicCytosolHeme
Am J Reprod Immunol
ChoriocarcinomaGenotypeHLA Antigens
See who Dr. Grasso researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grasso works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Grasso received $2,227 in industry payments from 2016 to 2025
CMS Open Payments shows 47 general payments to Dr. Grasso from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Galderma Laboratories, L.P. paid the most, $674.
General payments to Dr. Grasso by program year, 2016 to 2025
General payments to Dr. Grasso by kind, 2016 to 2025
$2.2Kin total
- Food and beverage$1,94187%
- Travel and lodging$28513%
Companies that paid Dr. Grasso the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Grasso graduated from University Of Washington School Of Medicine
Dr. Grasso graduated from University Of Washington School Of Medicine in 1983.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. John Grasso accepts plans from 1 insurance carrier
Dr. Grasso is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. John Grasso's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Grasso
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Grasso's NPI number?
Dr. John Grasso's NPI number is 1710921127. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Grasso?
Dr. John Grasso is an anesthesiologist in Upland, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John Grasso practice?
Dr. Grasso practices at 555 N 13th Avenue, Upland, CA 91786. Dr. Grasso's primary practice is Pacific Eye Institute - Upland in Upland, California.
What is Dr. John Grasso's office phone number?
The practice phone on file for Dr. Grasso is (909) 982-8846.
What is Dr. John Grasso's medical license number?
Dr. Grasso's California license number on file is G52753, one of the licenses on file in 2 states.
Which states has Dr. John Grasso been licensed in?
Dmand AI has state licenses on file for Dr. Grasso in California (1984 to 2025) and Nevada (1994 to 1995).
Which hospitals is Dr. John Grasso affiliated with?
Dr. Grasso is affiliated with San Antonio Regional Hospital.
What medical group is Dr. John Grasso part of?
Dr. Grasso is linked to Allied Anesthesia Medical Group.
Does Dr. John Grasso accept Medicare?
Yes. CMS data shows Dr. Grasso billed Medicare for 298 services in 2024, and Dr. Grasso accepts Medicare assignment.
How many Medicare patients does Dr. John Grasso see?
CMS counts 267 Medicare patients who saw Dr. Grasso in 2024, with an average age of 74.
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Is Dr. John Grasso board certified?
Yes. Dr. Grasso is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. John Grasso bill to Medicare?
In 2024, Dr. Grasso's most billed Medicare services were anesthesia (00142), anesthesia (00140) and anesthesia (00145).
Where did Dr. John Grasso go to medical school?
Dr. Grasso graduated from University Of Washington School Of Medicine in 1983.
Has Dr. John Grasso received payments from drug or device companies?
CMS Open Payments shows $2,227 in general payments to Dr. Grasso from 12 companies from 2016 to 2025. The largest total came from Galderma Laboratories, L.P.
How long has Dr. John Grasso been practicing?
Dr. Grasso graduated from medical school in 1983, 43 years ago.
Does Dr. John Grasso do research?
Dmand AI links 28 publications to Dr. Grasso.
What insurance does Dr. John Grasso accept?
Dr. Grasso is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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