Dr. Sumangaly Thambiaiyah, MD

  • Buffalo, NY
  • Internist
NPI1538424205PAC ID8325348675
Medicare services, 2024
421
Medicare patients, 2024
170
Part D claims, 2024
272
Publications
1
Hospital affiliations
2
Practice address
1540 Maple Road, Williamsville, NY 14221
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD

Acute Care Hospital outpatient department · Williamsville, New York

See all 7 affiliations

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Dr. Sumangaly Thambiaiyah is an internist in Buffalo, New York

Dr. Thambiaiyah practices at Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York.

Dr. Thambiaiyah's NPI, 1538424205, was assigned on July 9, 2012. Dr. Thambiaiyah graduated from Ross University School of Medicine in 2012. Dr. Thambiaiyah holds New York license 280078-01.

NPI and contact details
Medicare PAC ID
8325348675
NPI enumeration date
July 9, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
41
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Sumangaly Thambiaiyah practices at Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York

Dr. Thambiaiyah's primary practice is Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD, at 1540 Maple Road, Williamsville, NY 14221.

  • Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD
    1540 Maple Road, Williamsville, NY 14221

Source: Dmand AI Affiliation Data

Dr. Sumangaly Thambiaiyah is affiliated with 3 sites of care and 4 medical groups

Dr. Thambiaiyah's primary practice is Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York. Dr. Thambiaiyah is also affiliated with Buffalo General Medical Center/Gates Vascular Institute. The medical group on file is General Physician. Dmand AI also links Dr. Thambiaiyah to 1 more hospital and 3 medical groups, each named with a free account.

See all 7 affiliations for Dr. Thambiaiyah

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Sumangaly Thambiaiyah's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thambiaiyah practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Millard Fillmore Suburban Hospital - Infusion Therapy - HOPDAvailable with a free account
+2 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Sumangaly Thambiaiyah is one of 9,643 internists in New York

Internal medicine is Dr. Thambiaiyah's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Thambiaiyah is licensed in New York.

Specialties and state licenses

  • Internal medicine, New YorkPrimaryLicense 280078-01 · taxonomy 207R00000X

Internists near Dr. Thambiaiyah

Counts of internists 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. Sumangaly Thambiaiyah billed Medicare for 421 services in 2024

CMS data shows 421 Medicare services from Dr. Thambiaiyah across 4 procedure codes in 2024, for 170 Medicare patients. Medicare paid $35,157 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024421
Medicare patients170
Paid by Medicare$35,157
Procedure codes4

Dr. Thambiaiyah's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5942024: 42129%

Dr. Thambiaiyah compared with the New York median for internists, 2024

  • Dr. Thambiaiyah
  • New York median
Medicare services
421vs 426Close to median
Medicare patients
170vs 1588% above
Part D claims
67vs 62289% below

Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.

Dr. Thambiaiyah's most billed Medicare procedure codes, 2024

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

See all procedures by Dr. Thambiaiyah

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

Dr. Sumangaly Thambiaiyah treated 170 Medicare patients in 2024, average age 75

CMS counts 170 Medicare patients who saw Dr. Thambiaiyah in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.57, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Thambiaiyah's median patient age at 75, with 55% women.

Medicare patients, 2024170
Average age75
Average risk score2.57
Also on Medicaid39%

Dr. Thambiaiyah's Medicare patients by age, 2024

Dr. Thambiaiyah's Medicare patients by sex, 2024

  • Women9455%
  • Men7645%

Chronic conditions among Dr. Thambiaiyah's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis62%
  4. Chronic kidney disease58%
  5. Anxiety52%
  6. Heart failure50%
  7. Ischemic heart disease50%
  8. Diabetes45%

Share of Medicare patients with each condition. A patient can have several.

Dr. Thambiaiyah's patients across all payers

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

Patient panel by age, all payers

Median age 75

Patient panel by sex, all payers

  • Women55%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Sumangaly Thambiaiyah wrote 272 Medicare Part D claims in 2024

In 2024, Dr. Thambiaiyah wrote 272 Medicare Part D claims for 130 patients. 88% of them were for generic drugs. CMS names the drug for 67 of them, across 4 drugs with 11 or more claims each, at $386 in total drug cost. In 2023, CMS named 75 claims across 5 drugs.

Part D claims, 2024272
Drugs named by CMS4
Total drug cost$386
Part D patients130

Dr. Thambiaiyah's Part D claims by kind of drug, 2024

  • Generic238 claims88%
  • Brand-name and other34 claims13%

Dr. Thambiaiyah'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. Thambiaiyah's Part D claims, 2024

  • Opioids6%16 of 272 claims
  • Antibiotics24%65 of 272 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 752024: 6711%

Drugs named by CMS: 4 in 2024, 5 in 2023.

See all prescribing by Dr. Thambiaiyah

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. Sumangaly Thambiaiyah takes part in Medicare

Dr. Thambiaiyah 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)

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Dr. Sumangaly Thambiaiyah has 1 publication on record

Dmand AI links 1 paper to Dr. Thambiaiyah in 2014. Dr. Thambiaiyah's most frequent co-authors are Adel Obaji, MD, Gbolahan O. Ogunbayo, MD and Amole Oloyede Ojo, MD.

Papers1

Dr. Thambiaiyah's most frequent co-authors

Recent publications by Dr. Thambiaiyah

See all 1 publications and co-authors

See who Dr. Thambiaiyah researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thambiaiyah works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Sumangaly Thambiaiyah received $490 in industry payments from 2016 to 2024

CMS Open Payments shows 18 general payments to Dr. Thambiaiyah from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $125.

General payments to Dr. Thambiaiyah by program year, 2016 to 2024

Companies that paid Dr. Thambiaiyah the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Thambiaiyah

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

Dr. Sumangaly Thambiaiyah graduated from Ross University School of Medicine

Dr. Thambiaiyah graduated from Ross University School of Medicine in 2012.

  1. Medical schoolRoss University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Sumangaly Thambiaiyah'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Sumangaly Thambiaiyah

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. Sumangaly Thambiaiyah's NPI number?

Dr. Sumangaly Thambiaiyah's NPI number is 1538424205. It was assigned on July 9, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Sumangaly Thambiaiyah?

Dr. Sumangaly Thambiaiyah is an internist in Buffalo, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Sumangaly Thambiaiyah practice?

Dr. Thambiaiyah practices at 1540 Maple Road, Williamsville, NY 14221. Dr. Thambiaiyah's primary practice is Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York. Dmand AI also links Dr. Thambiaiyah to 1 hospital and 3 medical groups.

What is Dr. Sumangaly Thambiaiyah's medical license number?

Dr. Thambiaiyah holds New York license 280078-01.

Which hospitals is Dr. Sumangaly Thambiaiyah affiliated with?

Dr. Thambiaiyah is affiliated with Buffalo General Medical Center/Gates Vascular Institute. Dmand AI links Dr. Thambiaiyah to 1 more hospital.

What medical group is Dr. Sumangaly Thambiaiyah part of?

Dr. Thambiaiyah is linked to General Physician. Dmand AI links Dr. Thambiaiyah to 3 more medical groups.

Does Dr. Sumangaly Thambiaiyah accept Medicare?

Yes. CMS data shows Dr. Thambiaiyah billed Medicare for 421 services in 2024, and Dr. Thambiaiyah accepts Medicare assignment.

How many Medicare patients does Dr. Sumangaly Thambiaiyah see?

CMS counts 170 Medicare patients who saw Dr. Thambiaiyah in 2024, with an average age of 75.

What services does Dr. Sumangaly Thambiaiyah bill to Medicare?

In 2024, Dr. Thambiaiyah's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).

Where did Dr. Sumangaly Thambiaiyah go to medical school?

Dr. Thambiaiyah graduated from Ross University School of Medicine in 2012.

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What drugs does Dr. Sumangaly Thambiaiyah prescribe most?

In 2024 Medicare Part D data, Dr. Thambiaiyah's most prescribed drugs by claims were Prednisone, Pantoprazole Sodium and Cefuroxime.

Has Dr. Sumangaly Thambiaiyah received payments from drug or device companies?

CMS Open Payments shows $490 in general payments to Dr. Thambiaiyah from 9 companies from 2016 to 2024. The largest total came from Amgen Inc.

How long has Dr. Sumangaly Thambiaiyah been practicing?

Dr. Thambiaiyah graduated from medical school in 2012, 14 years ago.

Does Dr. Sumangaly Thambiaiyah do research?

Dmand AI links 1 publication to Dr. Thambiaiyah.

Who does Dr. Sumangaly Thambiaiyah publish with?

Dr. Thambiaiyah's most frequent co-authors are Adel Obaji, MD (1 shared paper), Gbolahan O. Ogunbayo, MD (1 shared paper) and Amole Oloyede Ojo, MD (1 shared paper).

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