Gregory Ritchie, DDS
NPI 1659537967 · Dentist · Marble Falls, TX
Enrolled with Medicare as Order and Referring Only - Other (physician) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Ritchie, DDS is a Dentist provider in Marble Falls, TX (NPI 1659537967).
Provider details
- NPI number
- 1659537967
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20161 (TX)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 56 | 49 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 20 | 16 |
| Clindamycin Hcl | 18 | 13 |
| Chlorhexidine Gluconate | 14 | 13 |
| Fluoride (sodium)brand: Sodium Fluoride | 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
- 2008-08-06
- Last updated
- 2008-08-06
Frequently asked questions
- What is Gregory Ritchie's NPI number?
- Gregory Ritchie's National Provider Identifier (NPI) is 1659537967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Ritchie's specialty?
- Gregory Ritchie is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Gregory Ritchie located?
- Gregory Ritchie's practice location on file with NPPES is 1000 Marble Hts, Marble Falls, TX 78654-4543.
- What is Gregory Ritchie's phone number?
- The practice phone number listed in the NPPES registry for Gregory Ritchie is (830) 693-8833.
- Does Gregory Ritchie accept Medicare?
- Gregory Ritchie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Ritchie's NPI active?
- Yes — Gregory Ritchie's NPI (1659537967) is active in the NPPES registry as of the last update on 2008-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.