Sabarish R. Ayyappan, MD
Hematology (Internal Medicine) Physician · Iowa City, IA
Sabarish R. Ayyappan, MD is a hematology (internal medicine) physician with a practice address in Iowa City, Iowa, and NPI 1558551507, issued on Jul 26, 2007. Check the license (Iowa MD-46041, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Sabarish R. Ayyappan
- Credential
- MD
- Primary taxonomy
- Hematology (Internal Medicine) Physician 207RH0000X
- License numbers
- MD-46041 IA
243101 MA
35-097600 OH
35097600 OH
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-7407
- Enumerated
- Jul 26, 2007
- Record last updated
- Jul 15, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (319) 353-8383
- Medicaid ID
- 0051543 OH
- Medicare enrollment
- Enrolled (PECOS I20230606001544); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology (internal medicine) physician records → All 10 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Helena Aaberg, MDAnesthesiology Physician1689301558
- Abdullah Abbasi, MDGastroenterology Physician1932944204
- Mary Jo Abbott, RPHPharmacist1841325875
- Francois Abboud, MDCardiovascular Disease Physician1598753113
- Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
- Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160
Verify Sabarish R. Ayyappan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-46041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average hematology (internal medicine) physician in 2024
761 Medicare Part D claims for 99 beneficiaries, against an average of 496 among the 1,036 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Acyclovir97 claims
- Lenalidomide74 claims
- Calquence47 claims
- Brukinsa33 claims
- Allopurinol32 claims
- Prednisone30 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: $48,237.19
62 payments; by number, the most common kind was food and beverage; the largest payer was BeiGene USA, Inc. The 721 providers of this specialty with any payment received $13,778.35 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- City OF Hope Medical Group OF Georgia LLCNewnan, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sabarish R. Ayyappan among 10 hematology (internal medicine) physician records in Iowa
Sabarish R. Ayyappan, MD is one of 10 hematology (internal medicine) physician records with a practice address in Iowa. 100% 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 20% of them.
- NPI issued2007 · 20% of these records are older, 60% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileYes · 100% of these records are
- Graduated2004 · median 2004 among the 10 with a school on file
- Record last updated2019 · 30% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology (Internal Medicine) Physician providers in Iowa
There are 10 hematology (internal medicine) physician records in Iowa.
All 10 in Iowa → Every provider in Iowa City → Hematology (Internal Medicine) Physician nationwide →
The 8 hematology (internal medicine) physician records with the nearest ZIP codes
- Prajwal Dhakal, MBBSIowa City, IA 522421578946406
- Pedro Hsieh, MDIowa City, IA 522421700561826
- Mohammad Hussain, MDIowa City, IA 522421427242767
- Steven Lentz, MDIowa City, IA 522421316934318
- Eric Mou, MDIowa City, IA 522421184044398
- Rogerio Pastore Bassitt, MDIowa City, IA 522421508750761
- Kittika Poonsombudlert, MDIowa City, IA 522421386174217
- Hira Shaikh, MDIowa City, IA 522421336591759
Common questions
What is Sabarish R. Ayyappan, MD's NPI number?
Sabarish R. Ayyappan, MD's National Provider Identifier (NPI) is 1558551507, issued on Jul 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sabarish R. Ayyappan, MD located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-7407. Providers update this record themselves, so call before visiting.
How can I verify Sabarish R. Ayyappan, MD's license?
NPPES lists Iowa license number MD-46041, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sabarish R. Ayyappan, MD prescribe under Medicare Part D?
In 2024, Sabarish R. Ayyappan, MD had 761 Medicare Part D claims for 99 beneficiaries; the average among hematology (internal medicine) physician prescribers was 496. 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.