Susan Obrien, M.D.
NPI 1528001112 · Family Medicine Physician · Greeneville, TN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Obrien, M.D. is a Family Medicine Physician provider in Greeneville, TN (NPI 1528001112).
Provider details
- NPI number
- 1528001112
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD34350 (TN)
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 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
2,427 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 | 1,975 | $73 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 243 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 209 | $106 |
Typical Medicare-allowed amounts for these services range $73–$120 (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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 94 | 13 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 87 | 11 |
| Gabapentin | 62 | 23 |
| Buprenorphine Hcl | 61 | — |
| Metoprolol Tartrate | 52 | 43 |
| Pantoprazole Sodium | 47 | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-13
- Last updated
- 2023-07-17
- Certified
- 2023-07-17
Frequently asked questions
- What is Susan Obrien's NPI number?
- Susan Obrien's National Provider Identifier (NPI) is 1528001112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Obrien's specialty?
- Susan Obrien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Susan Obrien located?
- Susan Obrien's practice location on file with NPPES is 401 Takoma Ave, Greeneville, TN 37743-4647.
- What is Susan Obrien's phone number?
- The practice phone number listed in the NPPES registry for Susan Obrien is (423) 639-3151.
- Does Susan Obrien accept Medicare?
- Susan Obrien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Obrien's NPI active?
- Yes — Susan Obrien's NPI (1528001112) is active in the NPPES registry as of the last update on 2023-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.