Marissa Ryan, DMD
NPI 1215035340 · General Practice Dentistry · So Portland, ME
Marissa Ryan, DMD is a General Practice Dentistry provider in So Portland, ME (NPI 1215035340).
Provider details
- NPI number
- 1215035340
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DMD
- Sex
- Female
- Sole proprietor
- No
- License
- 3833 (ME)
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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 32 | 25 |
| Penicillin V Potassium | 25 | 24 |
| Clindamycin Hcl | 15 | 12 |
| Fluoride (sodium)brand: Sodium Fluoride 5000 Dry Mouth | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marissa Ryan's NPI number?
- Marissa Ryan's National Provider Identifier (NPI) is 1215035340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Ryan's specialty?
- Marissa Ryan is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Marissa Ryan located?
- Marissa Ryan's practice location on file with NPPES is 25 Long Creek Dr, So Portland, ME 04106.
- What is Marissa Ryan's phone number?
- The practice phone number listed in the NPPES registry for Marissa Ryan is (207) 774-6553.
- Is Marissa Ryan's NPI active?
- Yes — Marissa Ryan's NPI (1215035340) 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.