Frederick Grassin, D.D.S.
NPI 1831311802 · Endodontics · New Port Richey, FL
Frederick Grassin, D.D.S. is a Endodontics provider in New Port Richey, FL (NPI 1831311802).
Provider details
- NPI number
- 1831311802
- Entity type
- Individual
- Primary specialty
- EndodonticsDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- DN14860 (FL)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 181 | 173 |
| Amoxicillin | 158 | 141 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 92 | 88 |
| Clindamycin Hcl | 47 | 43 |
| Methylprednisolone | 41 | 40 |
| Lorazepam | 30 | 28 |
| Chlorhexidine Gluconate | 17 | 17 |
| Metronidazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Frederick Grassin's NPI number?
- Frederick Grassin's National Provider Identifier (NPI) is 1831311802, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Grassin's specialty?
- Frederick Grassin is listed in the NPPES registry with a primary specialty of Endodontics (Dental Providers).
- Where is Frederick Grassin located?
- Frederick Grassin's practice location on file with NPPES is 5347 Main Street, New Port Richey, FL 34652.
- What is Frederick Grassin's phone number?
- The practice phone number listed in the NPPES registry for Frederick Grassin is (727) 841-9800.
- Is Frederick Grassin's NPI active?
- Yes — Frederick Grassin's NPI (1831311802) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.