KARTHIKEYAN VENKATACHALAM M.D
NPI 1760747430
Internal Medicine - Nephrology in Saint Louis, MO

Q: What is Karthikeyan Venkatachalam's NPI number?

The NPI number for Karthikeyan Venkatachalam is 1760747430. It was assigned to this individual provider in the NPPES registry on July 9, 2012.

Q: What is Karthikeyan Venkatachalam's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Active since July 09, 2012PECOS EnrolledAccepts Medicare Assignment

1201 S GRAND BLVD, SAINT LOUIS, MO 63104(314) 617-2000 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 16, 2025, Aug 25, 2022, May 6, 2019 and 2 more (5 updates tracked since 2019).

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About Karthikeyan Venkatachalam M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KARTHIKEYAN VENKATACHALAM M.D (NPI 1760747430) is an individual nephrology provider in Saint Louis, Missouri, licensed in Missouri (2026027542) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with St Dominic-jackson Memorial Hospital, and maintains a secondary practice location in Flowood.

NPPES Registry Identity

NPI1760747430

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameKARTHIKEYAN VENKATACHALAMCredential: M.D

Location Address1201 S GRAND BLVDSaint Louis, MO 63104-1016

Mailing Address102 Riverview Dr Ste AFlowood, MS 39232-8908 · (601) 981-1610 · Fax (601) 366-2887

Phone(314) 617-2000

Sole ProprietorNo

Medical School CMSOtherGraduated 2010

Enumeration DateJuly 9, 2012

Last NPPES UpdateJune 26, 20265 updates tracked since enumeration

NPPES CertifiedJune 26, 2026

✔ NPI 1760747430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in MO · 2026027542✔ Licensed in MS · 30294

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X · License 30294 (MS)

1201 S GRAND BLVD, Saint Louis, MO 63104

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Secondary Practice Location 1

Location 1102 Riverview Dr Ste AFlowood, MS 39232-8908 · Phone (601) 981-1610 · Fax (601) 366-2887

Other Identifiers 1

Other30294MS · State License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karthikeyan Venkatachalam M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537400387

PECOS Enrollment IDI20220825000508, I20260623004396

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Karthikeyan Venkatachalam reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ssm Health Care Group

Same address

Internal Medicine

1225 SOUTH GRAND BLVD, 2L - DOOR 3,4
Saint Louis, MO 63104

Reassigned Medicare billing, Missouri enrollment
1,294 clinicians in this Medicare group

NPI 1306589544 (314) 977-6100

Central Nephrology Clinic PLLC

434 mi

Nephrology

102 RIVERVIEW DR STE A
Flowood, MS 39232

Reassigned Medicare billing, Mississippi enrollment
17 clinicians in this Medicare group

NPI 1942576277 (601) 981-1610

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

291 services108 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

248 services119 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

234 services38 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

125 services87 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

108 services53 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

98 services94 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Dominic-Jackson Memorial Hospital

Acute Care Hospitals · Jackson, MS

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number250048

Location969 Lakeland DrJackson, MS 39216 · Hinds County

Emergency services Birthing friendly

Mississippi Baptist Medical Center

Acute Care Hospitals · Jackson, MS

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number250102

Location1225 N State StJackson, MS 39202 · Hinds County

Emergency services Birthing friendly

Baptist Medical Center-Yazoo

Critical Access Hospitals · Yazoo City, MS

OwnershipVoluntary non-profit - Private

CMS Certification Number251313

Location823 Grand AvenueYazoo City, MS 39194 · Yazoo County

Emergency services

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO

1/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number260105

Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg J7503

Treatment-Chemotherapy · category RH002N

3 suppliers16 claims4,290 services$1.16 avg. paid by Medicare

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

8 suppliers73 claims9,645 services$0.30 avg. paid by Medicare

Prednisone, immediate release or delayed release, oral, 1 mg J7512

Treatment-Treatment - Miscellaneous · category RX029N

2 suppliers30 claims5,100 services$0.01 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

7 suppliers51 claims7,110 services$0.17 avg. paid by Medicare

Mycophenolic acid, oral, 180 mg J7518

Treatment-Treatment - Miscellaneous · category RX029N

7 suppliers70 claims13,440 services$0.96 avg. paid by Medicare

Sirolimus, oral, 1 mg J7520

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier12 claims360 services$2.50 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DOUG LONGO APRN

Nurse Practitioner (Acute Care)