Karthikeyan Venkatachalam, M.D
Nephrology Physician · Saint Louis, MO
Karthikeyan Venkatachalam, M.D is a nephrology physician with a practice address in Saint Louis, Missouri, and NPI 1760747430, issued on Jul 9, 2012. Check the license (Missouri 2026027542, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Karthikeyan Venkatachalam
- Credential
- M.D
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 2026027542 MO
30294 MS
Self-reported in NPPES; status is on the state search - Practice location
- 1201 S Grand Blvd, Saint Louis, MO 63104
- Phone
- (314) 617-2000
- Enumerated
- Jul 9, 2012
- Record last updated
- Jun 26, 2026
- Medicare enrollment
- Enrolled (PECOS I20220825000508); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 285 in Missouri → Look up another NPI →
Also registered at 1201 S Grand Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Aaronson, M.D.Neurological Surgery Physician1679937908
- Brian Abboud, MDStudent in an Organized Health Care Education/Training Program1134821879
- Catherine Aber, MDStudent in an Organized Health Care Education/Training Program1215878293
- Krystel Abi KaramStudent in an Organized Health Care Education/Training Program1912708124
- Timothy Adrian, APRNAcute Care Nurse Practitioner1578437182
- Baris Afsar, M.D.Student in an Organized Health Care Education/Training Program1235976143
Verify Karthikeyan Venkatachalam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2026027542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average nephrology physician in 2024
1,318 Medicare Part D claims for 209 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Sevelamer Carbonate104 claims
- Losartan Potassium99 claims
- Jardiance88 claims
- Calcitriol71 claims
- Farxiga66 claims
- Furosemide61 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.
Industry payments in 2024: $1,363.48
48 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Central Nephrology Clinic PLLCFlowood, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karthikeyan Venkatachalam among 285 nephrology physician records in Missouri
Karthikeyan Venkatachalam, M.D is one of 285 nephrology physician records with a practice address in Missouri. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2015 · median 2000 among the 212 with a school on file
- Record last updated2026 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Missouri
There are 285 nephrology physician records in Missouri.
All 285 in Missouri → Every provider in Saint Louis → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Fadee Abu Al Rub, MDSt Louis, MO 631041790992675
- Bahar Bastani, MDSt Louis, MO 631041326059957
- Sinee Distha-Banchong, M.D.Saint Louis, MO 631041669726832
- John Edwards, MDSaint Louis, MO 631041972531861
- Rengin Elsurer Afsar, MDSaint Louis, MO 631041699537860
- Nourhan Houjeij, M.D.Saint Louis, MO 631041427511930
- Posan LimbuSaint Louis, MO 631041568848927
- Kevin Martin, MDSt Louis, MO 631041235140864
Common questions
What is Karthikeyan Venkatachalam, M.D's NPI number?
Karthikeyan Venkatachalam, M.D's National Provider Identifier (NPI) is 1760747430, issued on Jul 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Karthikeyan Venkatachalam, M.D located?
The NPPES record lists a practice address at 1201 S Grand Blvd, Saint Louis, MO, 63104. Phone: (314) 617-2000. Providers update this record themselves, so call before visiting.
How can I verify Karthikeyan Venkatachalam, M.D's license?
NPPES lists Missouri license number 2026027542, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karthikeyan Venkatachalam, M.D prescribe under Medicare Part D?
In 2024, Karthikeyan Venkatachalam, M.D had 1,318 Medicare Part D claims for 209 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.
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.