NPPES file of Aug 9, 2026

Surianarayanan Karthikeyan, MD

Gastroenterology Physician · Fargo, ND

Surianarayanan Karthikeyan, MD is a gastroenterology physician with a practice address in Fargo, North Dakota, and NPI 1881725836, issued on Mar 8, 2007. Check the license (North Dakota 21916, as entered in NPPES) on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881725836
Name
Surianarayanan Karthikeyan
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
21916 ND
220745-1 NY
Self-reported in NPPES; status is on the state search
Practice location
321 8TH Ave N, Fargo, ND 58102
Phone
(701) 234-2525
Enumerated
Mar 8, 2007
Record last updated
Feb 5, 2025
Medicaid ID
02151857 NY
Medicare enrollment
Enrolled (PECOS I20040720000024); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 321 8TH Ave N

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christine Artamenko, BSN-RNGastroenterology Registered Nurse1205798360
  2. Bailey BoehlerPhysician Assistant1881571750
  3. Justis CaldwellPhysician Assistant1548023690
  4. Arcelia Guerson GilGastroenterology Physician1770087108
  5. Frederick Gyabaah, MDHepatology Physician1891439253
  6. Lindsey Held, RNGastroenterology Registered Nurse1114867900

Verify Surianarayanan Karthikeyan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Dakota Board of Medicine
    Search for license 21916
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the North Dakota license search

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66% fewer Medicare Part D claims than the average gastroenterology physician in 2024

272 Medicare Part D claims for 110 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Surianarayanan Karthikeyan272
  2. Specialty average811

Most prescribed

  1. Omeprazole107 claims
  2. Pantoprazole Sodium36 claims
  3. Famotidine14 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: $533.67

23 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Surianarayanan Karthikeyan$533.67
  2. Specialty average$5,015.95

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

  1. Physician Care PCOswego, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Surianarayanan Karthikeyan among 32 gastroenterology physician records in North Dakota

Surianarayanan Karthikeyan, MD is one of 32 gastroenterology physician records with a practice address in North Dakota. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.

  • NPI issued2007 · 53% of these records are older, 38% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated1979 · median 2003 among the 28 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in North Dakota

There are 32 gastroenterology physician records in North Dakota.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Arcelia Guerson GilFargo, ND 581021770087108
  2. Emuejevoke Okoh, M.D.Fargo, ND 581021013970482
  3. Navin Paul, M.D.Fargo, ND 581021164674644
  4. Steven Pletcher, M.DFargo, ND 581021467429613
  5. Israr Sheikh, MDFargo, ND 581021396038162
  6. Stephen Spellman, MDFargo, ND 581021821020066
  7. Kimberly Kolkhorst, DOFargo, ND 581031245558428
  8. Settihalli Rajender, MDFargo, ND 581031992735757

Common questions

What is Surianarayanan Karthikeyan, MD's NPI number?

Surianarayanan Karthikeyan, MD's National Provider Identifier (NPI) is 1881725836, issued on Mar 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Surianarayanan Karthikeyan, MD located?

The NPPES record lists a practice address at 321 8TH Ave N, Fargo, ND, 58102. Phone: (701) 234-2525. Providers update this record themselves, so call before visiting.

How can I verify Surianarayanan Karthikeyan, MD's license?

NPPES lists North Dakota license number 21916, as entered by the provider. Search the North Dakota Board of Medicine at https://www.ndbom.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Surianarayanan Karthikeyan, MD prescribe under Medicare Part D?

In 2024, Surianarayanan Karthikeyan, MD had 272 Medicare Part D claims for 110 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.