DR. JOHN JACOB KAKKANATHU M.D.
NPI 1346458411
Internal Medicine in Saint Louis, MO

Active since May 20, 2007PECOS EnrolledAccepts Medicare Assignment
621 S NEW BALLAS RD, SUITE 3016B, SAINT LOUIS, MO 63141(314) 251-6339(314) 251-4564 Get Directions Write a Review

NPPES record last updated: July 17, 2014. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. John Jacob Kakkanathu M.d. NPPES

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

DR. JOHN JACOB KAKKANATHU M.D. (NPI 1346458411) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2009008964) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2006).

NPPES Registry Identity

NPI1346458411
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN JACOB KAKKANATHUCredential: M.D.
Location Address621 S NEW BALLAS RD, SUITE 3016BSaint Louis, MO 63141-8232
Mailing Address621 S New Ballas Rd, Suite 3016bSaint Louis, MO 63141-8232 · (314) 251-6339 · Fax (314) 251-4564
Fax(314) 251-4564
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2006
Enumeration DateMay 20, 2007
Last NPPES UpdateJuly 17, 2014
NPI 1346458411 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MO · 2009008964
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

621 S NEW BALLAS RD, Saint Louis, MO 63141

Other Identifiers 4

Medicare PIN133360013MO
OtherP00744531MO · Railroad Medicare
Medicaid1346458411MO
Medicare PIN133890012MO

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. John Jacob Kakkanathu 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 ID3375698491
PECOS Enrollment IDI20090825000716
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.

Areas of Expertise CMS Part B claims 6

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 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.
490 services181 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
97 services97 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
50 services50 patients
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.
32 services25 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.
29 services29 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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.

Other Providers at the Same Location NPPES 19

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

Specialist
621 S NEW BALLAS RD, STE 297A
SAINT LOUIS, MO 63141
Otolaryngology (Otology & Neurotology)
621 S NEW BALLAS RD, STE 597A
SAINT LOUIS, MO 63141
Internal Medicine (Gastroenterology)
621 S NEW BALLAS RD, SUITE 584A
SAINT LOUIS, MO 63141
Specialist
621 S NEW BALLAS RD, STE 297A
SAINT LOUIS, MO 63141
Specialist
621 S NEW BALLAS RD, SUITE 7011B
SAINT LOUIS, MO 63141
Specialist
621 S NEW BALLAS RD, SUITE 7011B
SAINT LOUIS, MO 63141
Specialist
621 S NEW BALLAS RD, SUITE 7011B
SAINT LOUIS, MO 63141
Specialist
621 S NEW BALLAS RD, SUITE 7011B
SAINT LOUIS, MO 63141

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Kakkanathu's NPI number?

The NPI number for John Kakkanathu is 1346458411. It was assigned to this individual provider in the NPPES registry on May 20, 2007.

Where is John Kakkanathu located?

John Kakkanathu practices at 621 S New Ballas Rd Suite 3016B, Saint Louis, MO 63141. The listed phone number is (314) 251-6339.

What is John Kakkanathu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Kakkanathu enrolled in Medicare?

Yes. John Kakkanathu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Kakkanathu accept?

Health plans from Anthem Blue Cross and Blue Shield and Medica list John Kakkanathu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Kakkanathu affiliated with any hospitals?

According to CMS data, John Kakkanathu is affiliated with Mercy Hospital St Louis.

When was this NPI record last updated?

The NPPES record for John Kakkanathu was last updated on July 17, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.