Keith Louis Obstein, MD, MPH
Gastroenterology Physician · Nashville, TN
Keith Louis Obstein, MD, MPH is a gastroenterology physician with a practice address in Nashville, Tennessee, and NPI 1528122595, issued on Dec 21, 2006. Check the license (Tennessee 46246, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Keith Louis Obstein
- Credential
- MD, MPH
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 46246 TN
231927 MA
MT183793 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3601 The Vanderbilt Clinic, Nashville, TN 37232
- Phone
- (615) 936-2000
- Enumerated
- Dec 21, 2006
- Record last updated
- Mar 26, 2022
- Medicare enrollment
- Enrolled (PECOS I20101005000904); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 384 in Tennessee → Look up another NPI →
Also registered at 3601 The Vanderbilt Clinic
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristie AamodtPediatric Endocrinology Physician1780115931
- Hibo Abdi, APRNGerontology Nurse Practitioner1336761758
- Hodan Abdi, NPFamily Nurse Practitioner1710383922
- Cecilia Abello, PA-CPhysician Assistant1760336101
- Ahad Abid, MDInternal Medicine Physician1316500176
- Yara Aboshady, MDObstetrics & Gynecology Physician1558998971
Verify Keith Louis Obstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 46246Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average gastroenterology physician in 2024
337 Medicare Part D claims for 176 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Gavilyte-G79 claims
- Omeprazole65 claims
- Peg-3350 And Electrolytes43 claims
- Pantoprazole Sodium29 claims
- Esomeprazole Magnesium14 claims
- Linzess13 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.
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Keith Louis Obstein among 384 gastroenterology physician records in Tennessee
Keith Louis Obstein, MD, MPH is one of 384 gastroenterology physician records with a practice address in Tennessee. 79% 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 26% of them.
- NPI issued2006 · 26% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2001 among the 255 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Tennessee
There are 384 gastroenterology physician records in Tennessee.
All 384 in Tennessee → Every provider in Nashville → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- George Avant, MDNashville, TN 372321356433767
- Robert Coffey, MDNashville, TN 372321093813941
- Raymond Dubois, MDNashville, TN 372321124127550
- Lloyd King, MDNashville, TN 372321811084916
- Christopher Lind, MDNashville, TN 372321629176573
- Brad Maltz, MDNashville, TN 372321063449031
- Mark Miller, MDNashville, TN 372321699773150
- Jagdish Nachnani, M.D.Nashville, TN 372321891726303
Common questions
What is Keith Louis Obstein, MD, MPH's NPI number?
Keith Louis Obstein, MD, MPH's National Provider Identifier (NPI) is 1528122595, issued on Dec 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keith Louis Obstein, MD, MPH located?
The NPPES record lists a practice address at 3601 The Vanderbilt Clinic, Nashville, TN, 37232. Phone: (615) 936-2000. Providers update this record themselves, so call before visiting.
How can I verify Keith Louis Obstein, MD, MPH's license?
NPPES lists Tennessee license number 46246, 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 Keith Louis Obstein, MD, MPH prescribe under Medicare Part D?
In 2024, Keith Louis Obstein, MD, MPH had 337 Medicare Part D claims for 176 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Keith Louis Obstein, MD, MPH's MIPS final score?
The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.