Dr. Gnana Desigan, MD

  • Waconia, MN
  • Gastroenterologist
NPI1477580298
Medicare services, 2023
60
Part D claims, 2024
34
Hospital affiliations
1
Industry payments
$71
Insurance carriers
8
Practice address
500 South Maple Street, Waconia, MN 55387
Practice phone
Call (952) 442-2191
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ridgeview Medical Center

Hospital · Waconia, Minnesota

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Dr. Gnana Desigan is a gastroenterologist in Waconia, Minnesota

Dr. Desigan practices at Ridgeview Medical Center in Waconia, Minnesota, part of Ridgeview Medical Center.

Dr. Desigan's NPI, 1477580298, was assigned on June 27, 2006. Dr. Desigan graduated from Madurai Medical College in 1972. Dr. Desigan holds California license C41859.

NPI and contact details
NPI enumeration date
June 27, 2006
NPI status
Active
Practice phone
(952) 442-2191
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
81
Medical school graduation
1972

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Gnana Desigan practices at Ridgeview Medical Center in Waconia, Minnesota

Dr. Desigan's primary practice is Ridgeview Medical Center, at 500 South Maple Street, Waconia, MN 55387 in Carver County. The practice phone is (952) 442-2191.

Source: Dmand AI Affiliation Data

Dr. Gnana Desigan is affiliated with 1 site of care

Dr. Desigan's primary practice is Ridgeview Medical Center in Waconia, Minnesota, part of Ridgeview Medical Center.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Gnana Desigan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Desigan practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ridgeview Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gnana Desigan is one of 366 gastroenterologists in Minnesota

Gastroenterology is Dr. Desigan's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Desigan is licensed in California.

Specialties and state licenses

  • Gastroenterology, CaliforniaPrimaryLicense C41859 · 1985 to 2026 · taxonomy 207RG0100X

Clinical focus

Dmand AI lists acid reflux, acute gastroduodenitis, colonoscopy, gastrointestinal bleeding, peptic ulcer and upper GI endoscopy among the conditions Dr. Desigan treats.

Gastroenterologists near Dr. Desigan

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Gnana Desigan billed Medicare for 60 services in 2023

CMS data shows 60 Medicare services from Dr. Desigan across 3 procedure codes in 2023. Medicare paid $5,166 for them.

Medicare services, 202360
Paid by Medicare$5,166
Procedure codes3

Dr. Desigan's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Surgery
2022: 2062023: 3085%
Office and hospital visits
2022: 1242023: 3076%

Where Dr. Desigan's Medicare services took place, 2023

  • In an office3050%
  • In a facility3050%

Dr. Desigan compared with the Minnesota median for gastroenterologists, 2023

  • Dr. Desigan
  • Minnesota median
Medicare services
60vs 27478% below
Part D claims
775vs 1425.5 times

Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.

Dr. Desigan's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gnana Desigan's patients have a median age of 72

Across all payers, Dmand AI patient panel data puts Dr. Desigan's median patient age at 72, with 33% women.

Dr. Desigan's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women33%
  • Men67%

Source: Dmand AI Patient Panel Data

Dr. Gnana Desigan wrote 34 Medicare Part D claims in 2024

In 2024, Dr. Desigan wrote 34 Medicare Part D claims. 100% of them were for generic drugs. They cover 13 drugs, with $94,087 in total drug cost. In 2022, CMS named 1,787 claims across 18 drugs.

Part D claims, 202434
Drugs named by CMS13
Total drug cost$94,087

Dr. Desigan's most prescribed drugs by claims, 2023

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 1,7872023: 77557%

Drugs named by CMS: 13 in 2023, 18 in 2022.

See all prescribing by Dr. Desigan

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Gnana Desigan received $71 in industry payments from 2016 to 2022

CMS Open Payments shows 5 general payments to Dr. Desigan from 4 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Synergy Pharmaceuticals Inc paid the most, $23.

General payments to Dr. Desigan by program year, 2016 to 2022

Companies that paid Dr. Desigan the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Desigan

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Gnana Desigan graduated from Madurai Medical College

Dr. Desigan graduated from Madurai Medical College in 1972.

  1. Medical schoolMadurai Medical College

Source: Dmand AI Professional Profile Data

Dr. Gnana Desigan accepts plans from 8 insurance carriers

Dr. Desigan is in network with 8 carriers, including Aetna, LA Care and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • LA Care
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • Regence Health Plans
  • Elevance
  • Molina

Plan types Dr. Desigan accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO1
  4. Medicaid1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Gnana Desigan's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gnana Desigan

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Gnana Desigan's NPI number?

Dr. Gnana Desigan's NPI number is 1477580298. It was assigned on June 27, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Gnana Desigan?

Dr. Gnana Desigan is a gastroenterologist in Waconia, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Gnana Desigan practice?

Dr. Desigan practices at 500 South Maple Street, Waconia, MN 55387. Dr. Desigan's primary practice is Ridgeview Medical Center in Waconia, Minnesota, part of Ridgeview Medical Center.

What is Dr. Gnana Desigan's office phone number?

The practice phone on file for Dr. Desigan is (952) 442-2191.

What is Dr. Gnana Desigan's medical license number?

Dr. Desigan holds California license C41859.

Which hospitals is Dr. Gnana Desigan affiliated with?

Dr. Desigan practices at Ridgeview Medical Center in Waconia, Minnesota.

Does Dr. Gnana Desigan accept Medicare?

Yes. CMS data shows Dr. Desigan billed Medicare for 60 services in 2023.

What services does Dr. Gnana Desigan bill to Medicare?

In 2023, Dr. Desigan's most billed Medicare services were office visit, new patient (99204), surgery: digestive system (43239) and surgery: digestive system (45378).

Where did Dr. Gnana Desigan go to medical school?

Dr. Desigan graduated from Madurai Medical College in 1972.

What drugs does Dr. Gnana Desigan prescribe most?

In 2023 Medicare Part D data, Dr. Desigan's most prescribed drugs by claims were Omeprazole, Famotidine and Sucralfate.

Show 3 more questionsShow fewer questions

Has Dr. Gnana Desigan received payments from drug or device companies?

CMS Open Payments shows $71 in general payments to Dr. Desigan from 4 companies from 2016 to 2022. The largest total came from Synergy Pharmaceuticals Inc.

How long has Dr. Gnana Desigan been practicing?

Dr. Desigan graduated from medical school in 1972, 54 years ago.

What insurance does Dr. Gnana Desigan accept?

Dr. Desigan is in network with 8 carriers, including Aetna, LA Care and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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