Joseph Jason Grassino, PA-C
- Medicare patients, 2024
- 702
- Part D claims, 2024
- 71
- Hospital affiliations
- 6
- Industry payments
- $55
- Medical group
- 1
- Practice address
- 615 New Ballas Road, Saint Louis, MO 63141
- Practice phone
- Call (314) 251-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Joseph Grassino'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.
Joseph Jason Grassino is a surgical physician assistant in Saint Louis, Missouri
Joseph Grassino practices at Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
Joseph Grassino's NPI, 1215202510, was assigned on March 20, 2012. Joseph Grassino holds Missouri license 2012008459.
- NPI
- 1215202510NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062676034
- NPI enumeration date
- March 20, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 251-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Joseph Jason Grassino practices at Mercy Hospital St. Louis in Saint Louis, Missouri
Joseph Grassino's primary practice is Mercy Hospital St. Louis, at 615 New Ballas Road, Saint Louis, MO 63141 in St. Louis County. The practice phone is (314) 251-6000.
- Mercy Hospital St. Louis615 New Ballas Road, Saint Louis, MO 63141 · St. Louis CountyPhone(314) 251-6000
Source: Dmand AI Affiliation Data
Joseph Jason Grassino is affiliated with 6 sites of care and 1 medical group
Joseph Grassino's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Joseph Grassino is also affiliated with Barnes-Jewish Hospital. The medical group on file is Stephen Veluz MD. Dmand AI also links Joseph Grassino to 4 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Joseph Jason Grassino's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joseph Grassino practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital St. Louis | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Joseph Jason Grassino is one of 135 surgical physician assistants in Missouri
Surgical is Joseph Grassino's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Joseph Grassino is licensed in Missouri.
Specialties and state licenses
- Surgical physician assistant, MissouriPrimary
Surgical physician assistants near Joseph Grassino
Counts of surgical physician assistants 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
Joseph Jason Grassino treated 702 Medicare patients in 2024, average age 80
CMS counts 702 Medicare patients who saw Joseph Grassino in 2024. The largest group is 75 to 84, with 296 patients. 75% of them have arthritis, and 75% have high blood pressure. 8% are also on Medicaid. Their average risk score is 2.19, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Joseph Grassino's median patient age at 74, with 45% women.
Joseph Grassino's Medicare patients by age, 2024
Joseph Grassino's Medicare patients by sex, 2024
- Women39656%
- Men30644%
Chronic conditions among Joseph Grassino's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease57%
- Ischemic heart disease55%
- Anxiety50%
- Mood disorders50%
- Heart failure49%
Share of Medicare patients with each condition. A patient can have several.
Joseph Grassino's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joseph Jason Grassino wrote 71 Medicare Part D claims in 2024
In 2024, Joseph Grassino wrote 71 Medicare Part D claims for 38 patients. 86% of them were for generic drugs.
Joseph Grassino's Part D claims by kind of drug, 2024
- Generic61 claims86%
- Brand-name and other10 claims14%
Drug classes CMS tracks in Joseph Grassino's Part D claims, 2024
- Antibiotics20%14 of 71 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Joseph Jason Grassino takes part in Medicare
Joseph Grassino 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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Joseph Jason Grassino received $55 in industry payments in 2025
CMS Open Payments shows 2 general payments to Joseph Grassino from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Urgo Medical North America, LLC paid the most, $30.
Companies that paid Joseph Grassino the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Joseph Jason Grassino'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 patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Joseph Jason Grassino
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joseph Jason Grassino's NPI number?
Joseph Jason Grassino's NPI number is 1215202510. It was assigned on March 20, 2012, and it is active in the NPI Registry.
What does Joseph Jason Grassino specialize in?
Joseph Jason Grassino is a surgical physician assistant in Saint Louis, Missouri. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Joseph Jason Grassino practice?
Joseph Grassino practices at 615 New Ballas Road, Saint Louis, MO 63141. Joseph Grassino's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Dmand AI also links Joseph Grassino to 4 hospitals.
What is Joseph Jason Grassino's office phone number?
The practice phone on file for Joseph Grassino is (314) 251-6000.
What is Joseph Jason Grassino's medical license number?
Joseph Grassino holds Missouri license 2012008459.
Which hospitals is Joseph Jason Grassino affiliated with?
Joseph Grassino practices at Mercy Hospital St. Louis in Saint Louis, Missouri. Joseph Grassino is also affiliated with Barnes-Jewish Hospital. Dmand AI links Joseph Grassino to 4 more hospitals.
What medical group is Joseph Jason Grassino part of?
Joseph Grassino is linked to Stephen Veluz MD.
Does Joseph Jason Grassino accept Medicare?
Yes. CMS lists Joseph Grassino as accepting Medicare assignment.
How many Medicare patients does Joseph Jason Grassino see?
CMS counts 702 Medicare patients who saw Joseph Grassino in 2024, with an average age of 80.
Has Joseph Jason Grassino received payments from drug or device companies?
CMS Open Payments shows $55 in general payments to Joseph Grassino from 2 companies from 2025 to 2025. The largest total came from Urgo Medical North America, LLC.
How long has Joseph Jason Grassino been practicing?
Joseph Grassino graduated from medical school in 2011, 15 years ago.
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