Joseph D. Baker, DO
Geriatric Medicine (Internal Medicine) Physician · Collierville, TN
Joseph D. Baker, DO is a geriatric medicine (internal medicine) physician with a practice address in Collierville, Tennessee, and NPI 1154436327, issued on Aug 20, 2006. Check the license (Tennessee 5026, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joseph D. Baker
- Credential
- DO
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License numbers
- 5026 TN
30819 MS
34004158 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1500 W Poplar Ave Ste 202, Collierville, TN 38017
- Phone
- (901) 861-9090
- Enumerated
- Aug 20, 2006
- Record last updated
- Dec 14, 2022
- Fax
- (901) 961-9099
- Medicare enrollment
- Enrolled (PECOS I20221228003068); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 1985
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 54 in Tennessee → Look up another NPI →
Also registered at 1500 W Poplar Ave Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nicole Lacy, NP-CFamily Nurse Practitioner1881359271
- Brittany May, DOFamily Medicine Physician1417690868
Verify Joseph D. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 5026Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
1,287 Medicare Part D claims for 96 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Amlodipine Besylate69 claims
- Atorvastatin Calcium64 claims
- Rosuvastatin Calcium57 claims
- Losartan Potassium50 claims
- Gabapentin49 claims
- Levothyroxine Sodium39 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $83.50
4 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Baptist Memorial Medical Group, Inc.Collierville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph D. Baker among 54 geriatric medicine (internal medicine) physician records in Tennessee
Joseph D. Baker, DO is one of 54 geriatric medicine (internal medicine) physician records with a practice address in Tennessee. 80% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 50% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1985 · median 2006 among the 30 with a school on file
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Tennessee
There are 54 geriatric medicine (internal medicine) physician records in Tennessee.
All 54 in Tennessee → Every provider in Collierville → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Robert Burns, M.D.Memphis, TN 381041669470316
- Sonal Mehr, MDMemphis, TN 381121205057957
- Jenifer Kurtz, MDKnoxville, TN 379201326079708
- Marian Bryce, D.O.Knoxville, TN 379191720001811
- Kendra Sheppard, MDMemphis, TN 381161760518658
- Mohammad Abutineh, M.D.Memphis, TN 381191043262538
- Nurlela Gouveia, M.DMemphis, TN 381191982048047
- Kelly White, M.D.Memphis, TN 381191821808387
Common questions
What is Joseph D. Baker, DO's NPI number?
Joseph D. Baker, DO's National Provider Identifier (NPI) is 1154436327, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph D. Baker, DO located?
The NPPES record lists a practice address at 1500 W Poplar Ave Ste 202, Collierville, TN, 38017. Phone: (901) 861-9090. Providers update this record themselves, so call before visiting.
How can I verify Joseph D. Baker, DO's license?
NPPES lists Tennessee license number 5026, 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 Joseph D. Baker, DO prescribe under Medicare Part D?
In 2024, Joseph D. Baker, DO had 1,287 Medicare Part D claims for 96 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Joseph D. Baker, DO's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. 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.