Frederick John Grassin, DDS
- Part D claims, 2024
- 613
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 5311 Grand Blvd, New Port Richey, FL 34652
- Practice phone
- Call (727) 848-3962
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ewing and Thomas Physical Therapy
Therapy Group Practice · New Port Richey, Florida
Find Frederick Grassin's professional email, personal email and mobile number
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Frederick John Grassin is an endodontist in New Port Richey, Florida
Frederick Grassin practices at Ewing and Thomas Physical Therapy in New Port Richey, Florida.
Frederick Grassin's NPI, 1831311802, was assigned on May 2, 2007. Frederick Grassin holds Florida license DN14860.
- NPI
- 1831311802NPI Registry (opens in a new tab)
- NPI enumeration date
- May 2, 2007
- NPI status
- Active
- Practice phone
- (727) 848-3962
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Frederick John Grassin practices at Ewing and Thomas Physical Therapy in New Port Richey, Florida
Frederick Grassin's primary practice is Ewing and Thomas Physical Therapy, at 5311 Grand Blvd, New Port Richey, FL 34652. The practice phone is (727) 848-3962.
- Ewing and Thomas Physical Therapy5311 Grand Blvd, New Port Richey, FL 34652Phone(727) 848-3962
Source: Dmand AI Affiliation Data
Frederick John Grassin is affiliated with 1 site of care
Frederick Grassin's primary practice is Ewing and Thomas Physical Therapy in New Port Richey, Florida.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Frederick John Grassin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Frederick Grassin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ewing and Thomas Physical Therapy | Available with a free account |
Source: Dmand AI Technology Install Data
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Frederick John Grassin is one of 180 endodontists in Florida
Endodontics is Frederick Grassin's primary specialty in the NPI Registry, under taxonomy code 1223E0200X. Frederick Grassin is licensed in Florida.
Specialties and state licenses
- Endodontist, FloridaPrimary
Endodontists near Frederick Grassin
Counts of endodontists 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
Frederick John Grassin's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Frederick Grassin's median patient age at 59, with 50% women.
Frederick Grassin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Frederick John Grassin wrote 613 Medicare Part D claims in 2024
In 2024, Frederick Grassin wrote 613 Medicare Part D claims for 346 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Frederick Grassin's Part D claims, 2024
- Antibiotics54%329 of 613 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
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Sources for Frederick John Grassin'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Frederick John Grassin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Frederick John Grassin's NPI number?
Frederick John Grassin's NPI number is 1831311802. It was assigned on May 2, 2007, and it is active in the NPI Registry.
What does Frederick John Grassin specialize in?
Frederick John Grassin is an endodontist in New Port Richey, Florida. The primary specialty in the NPI Registry is Endodontist (taxonomy code 1223E0200X).
Where does Frederick John Grassin practice?
Frederick Grassin practices at 5311 Grand Blvd, New Port Richey, FL 34652. Frederick Grassin's primary practice is Ewing and Thomas Physical Therapy in New Port Richey, Florida.
What is Frederick John Grassin's office phone number?
The practice phone on file for Frederick Grassin is (727) 848-3962.
What is Frederick John Grassin's medical license number?
Frederick Grassin holds Florida license DN14860.
How long has Frederick John Grassin been practicing?
Frederick Grassin's NPI was assigned in 2007.
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