Gary Sides, D.O.
NPI 1952309791 · Family Medicine Physician · Festus, MO
Gary Sides, D.O. is a Family Medicine Physician provider in Festus, MO (NPI 1952309791).
Provider details
- NPI number
- 1952309791
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- R1B61 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Potassium Chloride | 15 |
| Triamterene/Hydrochlorothiazidbrand: Triamterene-Hydrochlorothiazid | 14 |
| Simvastatin | 14 |
| Sertraline Hcl | 14 |
| Levothyroxine Sodium | 14 |
| Alendronate Sodium | 12 |
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
- 2005-07-13
- Last updated
- 2021-02-12
- Certified
- 2021-02-12
Frequently asked questions
- What is Gary Sides's NPI number?
- Gary Sides's National Provider Identifier (NPI) is 1952309791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Sides's specialty?
- Gary Sides is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Sides located?
- Gary Sides's practice location on file with NPPES is 1216 W Main St, Festus, MO 63028-1654.
- What is Gary Sides's phone number?
- The practice phone number listed in the NPPES registry for Gary Sides is (636) 937-3611.
- Is Gary Sides's NPI active?
- Yes — Gary Sides's NPI (1952309791) is active in the NPPES registry as of the last update on 2021-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.