Mark Gunby, DO
NPI 1699886309 · Geriatric Medicine (Internal Medicine) Physician · Saint Louis, MO
Mark Gunby, DO is a Geriatric Medicine (Internal Medicine) Physician provider in Saint Louis, MO (NPI 1699886309).
Provider details
- NPI number
- 1699886309
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 100326 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
626 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 269 | $122 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 171 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $87 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 52 | $16 |
| Hemoglobin A1c Level83036 | 28 | $9 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 171 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 851 | 260 |
| Lisinopril | 694 | 219 |
| Amlodipine Besylate | 542 | 168 |
| Levothyroxine Sodium | 490 | 139 |
| Simvastatin | 374 | 118 |
| Apixabanbrand: Eliquis | 314 | 59 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$61 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3844 S Lindbergh BlvdSte. 120Saint Louis, MO 63127-1368Phone: (314) 525-0490Fax: (314) 525-0434
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2021-02-19
- Certified
- 2021-02-19
Frequently asked questions
- What is Mark Gunby's NPI number?
- Mark Gunby's National Provider Identifier (NPI) is 1699886309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gunby's specialty?
- Mark Gunby is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Gunby located?
- Mark Gunby's practice location on file with NPPES is 3844 S Lindbergh Blvd Ste 120, Saint Louis, MO 63127-1369.
- What is Mark Gunby's phone number?
- The practice phone number listed in the NPPES registry for Mark Gunby is (314) 525-0490.
- Is Mark Gunby's NPI active?
- Yes — Mark Gunby's NPI (1699886309) is active in the NPPES registry as of the last update on 2021-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.