Marcia Toppenberg, MD
NPI 1558372557 · Family Medicine Physician · Greeneville, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcia Toppenberg, MD is a Family Medicine Physician provider in Greeneville, TN (NPI 1558372557).
Provider details
- NPI number
- 1558372557
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 30266 (TN)
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
19 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
188 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 99 | $118 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 28 | $119 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 25 | $17 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 22 | $118 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 14 | $166 |
Typical Medicare-allowed amounts for these services range $17–$166 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 84 | 28 |
| Amlodipine Besylate | 76 | 21 |
| Levothyroxine Sodium | 64 | 20 |
| Potassium Chloride | 62 | 16 |
| Pantoprazole Sodium | 58 | 20 |
| Omeprazole | 58 | 19 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-11
- Last updated
- 2009-03-23
Frequently asked questions
- What is Marcia Toppenberg's NPI number?
- Marcia Toppenberg's National Provider Identifier (NPI) is 1558372557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcia Toppenberg's specialty?
- Marcia Toppenberg is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marcia Toppenberg located?
- Marcia Toppenberg's practice location on file with NPPES is 1410 Tusculum Blvd, Greeneville, TN 37745-4286.
- What is Marcia Toppenberg's phone number?
- The practice phone number listed in the NPPES registry for Marcia Toppenberg is (423) 787-7000.
- Does Marcia Toppenberg accept Medicare?
- Marcia Toppenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcia Toppenberg's NPI active?
- Yes — Marcia Toppenberg's NPI (1558372557) is active in the NPPES registry as of the last update on 2009-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.