John R. Grassam, DC
- Medicare patients, 2024
- 13
- Affiliated sites
- 2
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 10000 Sw Innovation Way, Port Saint Lucie, FL 34987
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Martin Health Physician Group - HOPD
Acute Care Hospital outpatient department · Port Saint Lucie, Florida
Find John Grassam'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.
John R. Grassam is a chiropractor in Port Saint Lucie, Florida
John Grassam practices at Martin Health Physician Group - HOPD in Port Saint Lucie, Florida.
John Grassam's NPI, 1821293440, was assigned on June 15, 2007. John Grassam graduated from Life Chiropractic College in 1998. John Grassam holds Florida license CH7964.
- NPI
- 1821293440NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406988765
- NPI enumeration date
- June 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John R. Grassam practices at Martin Health Physician Group - HOPD in Port Saint Lucie, Florida
John Grassam's primary practice is Martin Health Physician Group - HOPD, at 10000 Sw Innovation Way, Port Saint Lucie, FL 34987.
- Martin Health Physician Group - HOPD10000 Sw Innovation Way, Port Saint Lucie, FL 34987
Source: Dmand AI Affiliation Data
John R. Grassam is affiliated with 2 sites of care
John Grassam's primary practice is Martin Health Physician Group - HOPD in Port Saint Lucie, Florida. Dmand AI also links John Grassam to 1 physician office, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John R. Grassam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Grassam practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martin Health Physician Group - HOPD | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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John R. Grassam is one of 3,152 chiropractors in Florida
Chiropractor is John Grassam's primary specialty in the NPI Registry, under taxonomy code 111N00000X. John Grassam is licensed in Florida.
Specialties and state licenses
- Chiropractor, FloridaPrimary
Chiropractors near John Grassam
Counts of chiropractors 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
John R. Grassam treated 13 Medicare patients in 2024, average age 73
CMS counts 13 Medicare patients who saw John Grassam in 2024. The largest group is under 65, with 0 patients. Their average risk score is 0.71, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John Grassam's median patient age at 69, with 61% women.
John Grassam's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Grassam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How John R. Grassam takes part in Medicare
John Grassam 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)
John R. Grassam graduated from Life Chiropractic College
John Grassam graduated from Life Chiropractic College in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John R. Grassam'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 John R. Grassam
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John R. Grassam's NPI number?
John R. Grassam's NPI number is 1821293440. It was assigned on June 15, 2007, and it is active in the NPI Registry.
What does John R. Grassam specialize in?
John R. Grassam is a chiropractor in Port Saint Lucie, Florida. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does John R. Grassam practice?
John Grassam practices at 10000 Sw Innovation Way, Port Saint Lucie, FL 34987. John Grassam's primary practice is Martin Health Physician Group - HOPD in Port Saint Lucie, Florida. Dmand AI also links John Grassam to 1 physician office.
What is John R. Grassam's medical license number?
John Grassam holds Florida license CH7964.
Does John R. Grassam accept Medicare?
Yes. CMS lists John Grassam as accepting Medicare assignment.
How many Medicare patients does John R. Grassam see?
CMS counts 13 Medicare patients who saw John Grassam in 2024, with an average age of 73.
Where did John R. Grassam go to medical school?
John Grassam graduated from Life Chiropractic College in 1998.
How long has John R. Grassam been practicing?
John Grassam graduated from medical school in 1998, 28 years ago.
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