NPPES file of Aug 9, 2026

Susan N. Obrien, M.D.

Family Medicine Physician · Greeneville, TN

Susan N. Obrien, M.D. is a family medicine physician with a practice address in Greeneville, Tennessee, and NPI 1528001112, issued on Jun 13, 2006. Check the license (Tennessee MD34350, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528001112
Name
Susan N. Obrien
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD34350 TN
Self-reported in NPPES; status is on the state search
Practice location
401 Takoma Ave, Greeneville, TN 37743
Phone
(423) 639-3151
Enumerated
Jun 13, 2006
Record last updated
Jul 17, 2023
Medicare enrollment
Enrolled (PECOS I20050225000364); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 2,674 in Tennessee → Look up another NPI →

Also registered at 401 Takoma Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Douglas Adkisson, MDHospitalist Physician1902953896
  2. Muhammad Akmal, M.D.Hospitalist Physician1144269887
  3. Isioma Aninyei, M.DHospitalist Physician1235450248
  4. Mandeep Bakshi, MDPulmonary Disease Physician1669458857
  5. Edward Crutchfield, M.D.Emergency Medicine Physician1275580391
  6. Spencer Maden, NP-CFamily Nurse Practitioner1487022745

Verify Susan N. Obrien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license MD34350    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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58% fewer Medicare Part D claims than the average family medicine physician in 2024

1,497 Medicare Part D claims for 274 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 96 claims were for opioids.

  1. Susan Obrien1,497
  2. Specialty average3,544

Most prescribed

  1. Clonazepam94 claims
  2. Buprenorphine-Naloxone87 claims
  3. Gabapentin62 claims
  4. Buprenorphine Hcl61 claims
  5. Metoprolol Tartrate52 claims
  6. Pantoprazole Sodium47 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. Champion Physical Therapy LLC HallsElizabethton, TN
  2. Southeastern Physician Services PCKingsport, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Susan N. Obrien among 2,674 family medicine physician records in Tennessee

Susan N. Obrien, M.D. is one of 2,674 family medicine physician records with a practice address in Tennessee. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.

  • NPI issued2006 · 17% of these records are older, 48% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1998 · median 2004 among the 1,685 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 family medicine physician records list a practice address in Greeneville

They are 36 of the 773 NPPES records with a practice address in Greeneville, and 2,674 family medicine physician records in Tennessee.

All 2,674 in Tennessee → Every provider in Greeneville → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Richard Aasheim, M.D.Greeneville, TN 377431831139005
  2. Felix Fernandez, D.O.Greeneville, TN 377431629017397
  3. Sarah Knuettel, DOGreeneville, TN 377431316428626
  4. Daniel Lewis, MDGreeneville, TN 377431902821069
  5. Benjamin Morgan, DOGreeneville, TN 377431861888927
  6. Michael Odell, M.D.Greeneville, TN 377431477593143
  7. John Shaw, M.D.Greeneville, TN 377431750321436
  8. Meenu Singh, MDGreeneville, TN 377431407057409

Common questions

What is Susan N. Obrien, M.D.'s NPI number?

Susan N. Obrien, M.D.'s National Provider Identifier (NPI) is 1528001112, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Susan N. Obrien, M.D. located?

The NPPES record lists a practice address at 401 Takoma Ave, Greeneville, TN, 37743. Phone: (423) 639-3151. Providers update this record themselves, so call before visiting.

How can I verify Susan N. Obrien, M.D.'s license?

NPPES lists Tennessee license number MD34350, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Susan N. Obrien, M.D. prescribe under Medicare Part D?

In 2024, Susan N. Obrien, M.D. had 1,497 Medicare Part D claims for 274 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.