Marshall Tanner, M.D.
NPI 1326031865 · Internal Medicine Physician · Douglas, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Tanner, M.D. is a Internal Medicine Physician provider in Douglas, GA (NPI 1326031865).
Provider details
- NPI number
- 1326031865
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 056658 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
672 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 462 | $74 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 157 | $107 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 53 | $124 |
Typical Medicare-allowed amounts for these services range $74–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefuroxime Axetilbrand: Cefuroxime | 68 | 65 |
| Potassium Chloride | 55 | 12 |
| Methylprednisolone | 49 | 46 |
| Metoprolol Succinate | 34 | — |
| Levothyroxine Sodium | 32 | — |
| Amlodipine Besylate | 32 | 14 |
| Montelukast Sodium | 31 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-30
- Last updated
- 2016-04-21
Frequently asked questions
- What is Marshall Tanner's NPI number?
- Marshall Tanner's National Provider Identifier (NPI) is 1326031865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Tanner's specialty?
- Marshall Tanner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Tanner located?
- Marshall Tanner's practice location on file with NPPES is 2016 Ocilla Rd, Douglas, GA 31533-2230.
- What is Marshall Tanner's phone number?
- The practice phone number listed in the NPPES registry for Marshall Tanner is (912) 384-4010.
- Does Marshall Tanner accept Medicare?
- Marshall Tanner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Tanner's NPI active?
- Yes — Marshall Tanner's NPI (1326031865) is active in the NPPES registry as of the last update on 2016-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.