Dr. Ayan Tyagi Kumar, MD
- Part D claims, 2024
- 33
- Hospital affiliations
- 3
- Industry payments
- $342
- Medical groups
- 4
- State license
- 1
- Practice address
- 2800 10th Ave N, Billings, MT 59101
- Practice phone
- Call (406) 657-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kumar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ayan Tyagi Kumar is an otolaryngologist in Billings, Montana
Dr. Kumar practices at Billings Clinic Hospital in Billings, Montana, part of Billings Clinic.
Dr. Kumar's NPI, 1447818398, was assigned on June 4, 2019. Dr. Kumar holds Montana license MED-PHYS-LIC-163583.
- NPI
- 1447818398NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517292360
- NPI enumeration date
- June 4, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 657-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ayan Tyagi Kumar practices at Billings Clinic Hospital in Billings, Montana
Dr. Kumar's primary practice is Billings Clinic Hospital, at 2800 10th Ave N, Billings, MT 59101 in Yellowstone County. The practice phone is (406) 657-4000.
- Billings Clinic Hospital2800 10th Ave N, Billings, MT 59101 · Yellowstone CountyPhone(406) 657-4000
Source: Dmand AI Affiliation Data
Dr. Ayan Tyagi Kumar is affiliated with 5 sites of care and 4 medical groups
Dr. Kumar's primary practice is Billings Clinic Hospital in Billings, Montana, part of Billings Clinic. Dr. Kumar is also affiliated with Confluence Health Hospital | Central Campus. The medical group on file is Billings Clinic. Dmand AI also links Dr. Kumar to 1 more hospital, 3 medical groups and 2 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ayan Tyagi Kumar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kumar practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Billings Clinic Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Billings Clinic and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ayan Tyagi Kumar is one of 38 otolaryngologists in Montana
Otolaryngology is Dr. Kumar's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Kumar is licensed in Montana.
Specialties and state licenses
- Otolaryngology, MontanaPrimary
Otolaryngologists near Dr. Kumar
Counts of otolaryngologists 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. Ayan Tyagi Kumar's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Kumar's median patient age at 50, with 53% women.
Dr. Kumar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women53%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Ayan Tyagi Kumar wrote 33 Medicare Part D claims in 2024
In 2024, Dr. Kumar wrote 33 Medicare Part D claims for 18 patients. 100% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $23 in total drug cost.
Dr. Kumar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Kumar's Part D claims, 2024
- Opioids48%16 of 33 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Dr. Ayan Tyagi Kumar takes part in Medicare
Dr. Kumar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Ayan Tyagi Kumar received $342 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. Kumar from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $149.
General payments to Dr. Kumar by program year, 2024 to 2025
Companies that paid Dr. Kumar the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ayan Tyagi Kumar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ayan Tyagi Kumar
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. Ayan Tyagi Kumar's NPI number?
Dr. Ayan Tyagi Kumar's NPI number is 1447818398. It was assigned on June 4, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Ayan Tyagi Kumar?
Dr. Ayan Tyagi Kumar is an otolaryngologist in Billings, Montana. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Ayan Tyagi Kumar practice?
Dr. Kumar practices at 2800 10th Ave N, Billings, MT 59101. Dr. Kumar's primary practice is Billings Clinic Hospital in Billings, Montana, part of Billings Clinic. Dmand AI also links Dr. Kumar to 1 hospital, 3 medical groups and 2 group practices and clinics.
What is Dr. Ayan Tyagi Kumar's office phone number?
The practice phone on file for Dr. Kumar is (406) 657-4000.
What is Dr. Ayan Tyagi Kumar's medical license number?
Dr. Kumar holds Montana license MED-PHYS-LIC-163583.
Which hospitals is Dr. Ayan Tyagi Kumar affiliated with?
Dr. Kumar practices at Billings Clinic Hospital in Billings, Montana. Dr. Kumar is also affiliated with Confluence Health Hospital | Central Campus. Dmand AI links Dr. Kumar to 1 more hospital.
What medical group is Dr. Ayan Tyagi Kumar part of?
Dr. Kumar is linked to Billings Clinic. Dmand AI links Dr. Kumar to 3 more medical groups.
Does Dr. Ayan Tyagi Kumar accept Medicare?
Yes. CMS lists Dr. Kumar as accepting Medicare assignment.
What drugs does Dr. Ayan Tyagi Kumar prescribe most?
In 2024 Medicare Part D data, Dr. Kumar's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Ayan Tyagi Kumar received payments from drug or device companies?
CMS Open Payments shows $342 in general payments to Dr. Kumar from 4 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Ayan Tyagi Kumar been practicing?
Dr. Kumar graduated from medical school in 2019, 7 years ago.
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