DR. KARTHIKA RAJAN MD
NPI 1457450595
Internal Medicine - Endocrinology, Diabetes & Metabolism in Columbus, OH

Active since September 22, 2006PECOS Enrolled
81.3/100
CMS Quality Rating
420 N JAMES RD, COLUMBUS, OH 43219(614) 257-5200 Get Directions Write a Review

NPPES record last updated: December 27, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 3, 2023, Jan 25, 2022, Nov 9, 2020 and 1 more (4 updates tracked since 2018).

About Dr. Karthika Rajan Md NPPES

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

DR. KARTHIKA RAJAN MD (NPI 1457450595) is an individual endocrinology, diabetes & metabolism provider in Columbus, Ohio, licensed in Ohio (35.099520) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457450595
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. KARTHIKA RAJANCredential: MD
Location Address420 N JAMES RDColumbus, OH 43219-1834
Mailing Address6799 Corna CtDublin, OH 43016-7780 · (740) 578-9632
Sole ProprietorNo
Enumeration DateSeptember 22, 2006
Last NPPES UpdateDecember 27, 20234 updates tracked since enumeration
NPPES CertifiedDecember 27, 2023
✔ NPI 1457450595 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in OH · 35.099520
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
420 N JAMES RD, Columbus, OH 43219

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Karthika Rajan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Karthika Rajan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Thoracic Surgery (Cardiothoracic Vascular Surgery)
85 MCNAUGHTEN RD STE 110
Columbus, OH 43213
  • Reassigned Medicare billing, Ohio enrollment
  • 3,314 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 43219 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.3/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.58
Promoting Interoperability98
Improvement Activities40
Cost65.77

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.

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
7 suppliers83 claims1,045 services$18.56 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
7 suppliers84 claims2,605 services$2.34 avg. paid by Medicare
Supply allowance for adjunctive continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service A4238
DME-Medical/Surgical Supplies · category DA000N
2 suppliers15 claims15 services$162.57 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
19 suppliers81 claims272 services$6.04 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
2 suppliers54 claims54 services$310.56 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
15 suppliers88 claims8,160 services$6.65 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.

Allergy & Immunology
420 N JAMES RD
COLUMBUS, OH 43219
Pharmacist
420 N JAMES RD
COLUMBUS, OH 43219
Registered Nurse (Diabetes Educator)
420 N JAMES RD
COLUMBUS, OH 43219
Licensed Practical Nurse
420 N JAMES RD
COLUMBUS, OH 43219
Licensed Practical Nurse
420 N JAMES RD
COLUMBUS, OH 43219
Registered Nurse
420 N JAMES RD
COLUMBUS, OH 43219
Registered Nurse (Women's Health Care, Ambulatory)
420 N JAMES RD
COLUMBUS, OH 43219
Registered Nurse
420 N JAMES RD
COLUMBUS, OH 43219

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 Karthika Rajan's NPI number?

The NPI number for Karthika Rajan is 1457450595. It was assigned to this individual provider in the NPPES registry on September 22, 2006.

Where is Karthika Rajan located?

Karthika Rajan practices at 420 N James Rd, Columbus, OH 43219. The listed phone number is (614) 257-5200.

What is Karthika Rajan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Karthika Rajan enrolled in Medicare?

Yes. Karthika Rajan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Karthika Rajan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karthika Rajan reassigns Medicare benefits to Ohiohealth Corporation (Columbus, OH). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karthika Rajan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karthika Rajan accept?

Health plans from MedMutual list Karthika Rajan 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.

When was this NPI record last updated?

The NPPES record for Karthika Rajan was last updated on December 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.