Brennan McCullar, M.D
Internal Medicine Physician · Memphis, TN
Brennan McCullar, M.D is an internal medicine physician with a practice address in Memphis, Tennessee, and NPI 1912318049, issued on May 12, 2014. Check the license (Tennessee 55466, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Brennan McCullar
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 55466 TN
E-13241 AR
25587 MS
Self-reported in NPPES; status is on the state search - Practice location
- 6019 Walnut Grove RD, Memphis, TN 38120
- Phone
- (901) 226-3610
- Enumerated
- May 12, 2014
- Record last updated
- Aug 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (901) 226-3612
- Medicare enrollment
- Enrolled (PECOS I20170920000860); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 6019 Walnut Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brennan McCullar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 55466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
275 Medicare Part D claims for 153 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Amlodipine Besylate37 claims
- Sps22 claims
- Potassium Chloride13 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: $18.67
1 payment: food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.Germantown, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brennan McCullar among 2,596 internal medicine physician records in Tennessee
Brennan McCullar, M.D is one of 2,596 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 2014, is newer than 77% of them.
- NPI issued2014 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2003 among the 1,705 with a school on file
- Record last updated2020 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
325 internal medicine physician records list a practice address in Memphis
They are 325 of the 12,794 NPPES records with a practice address in Memphis, and 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Memphis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Joseph Allen, MDMemphis, TN 381201508887365
- Amin Bandealy, M.D.Memphis, TN 381201174555247
- Cary Finn, M.D.Memphis, TN 381201033192992
- John Fowler, M.D.Memphis, TN 381201982658506
- Alka Kamo, M.D.Memphis, TN 381201295738128
- Ashutosh Mishra, MDMemphis, TN 381201942262829
- Kamal Mohan, MDMemphis, TN 381201073514022
Common questions
What is Brennan McCullar, M.D's NPI number?
Brennan McCullar, M.D's National Provider Identifier (NPI) is 1912318049, issued on May 12, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Brennan McCullar, M.D located?
The NPPES record lists a practice address at 6019 Walnut Grove RD, Memphis, TN, 38120. Phone: (901) 226-3610. Providers update this record themselves, so call before visiting.
How can I verify Brennan McCullar, M.D's license?
NPPES lists Tennessee license number 55466, 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 Brennan McCullar, M.D prescribe under Medicare Part D?
In 2024, Brennan McCullar, M.D had 275 Medicare Part D claims for 153 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Brennan McCullar, M.D'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.