Carol Ann C. Tan, MD
Internal Medicine Physician · Coralville, IA
Carol Ann C. Tan, MD is an internal medicine physician with a practice address in Coralville, Iowa, and NPI 1356455398, issued on Aug 18, 2006. Check the license (Iowa 40223, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Carol Ann C. Tan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 40223 IA
036095755 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2769 Heartland Dr, Coralville, IA 52241
- Phone
- (319) 887-2900
- Enumerated
- Aug 18, 2006
- Record last updated
- Dec 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (319) 339-3858
- Medicaid ID
- 036095755 IL
- Medicare enrollment
- Enrolled (PECOS I20120514000378); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 2769 Heartland Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Carol Ann C. Tan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 40223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
8,075 Medicare Part D claims for 415 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 102 claims were for opioids.
Most prescribed
- Amlodipine Besylate491 claims
- Atorvastatin Calcium415 claims
- Rosuvastatin Calcium392 claims
- Levothyroxine Sodium311 claims
- Losartan Potassium291 claims
- Metoprolol Succinate279 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: $159.76
7 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Mercy Physician Associates IncHiawatha, IA
- Progressive Rehabilitation Associates LLCIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carol Ann C. Tan among 871 internal medicine physician records in Iowa
Carol Ann C. Tan, MD is one of 871 internal medicine physician records with a practice address in Iowa. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 62% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated1990 · median 2008 among the 386 with a school on file
- Record last updated2016 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Coralville
They are 23 of the 708 NPPES records with a practice address in Coralville, and 871 internal medicine physician records in Iowa.
All 871 in Iowa → Every provider in Coralville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elizabeth Berigan, M.D.Coralville, IA 522411346324399
- Gregory Bozek, M.D.Coralville, IA 522411790764751
- Maurice Champion, MDCoralville, IA 522411831191626
- Christina Charis-Donelson, M.D.Coralville, IA 522411053388686
- Michael Gomendoza, MDCoralville, IA 522411174637110
- Lauris Kaldjian, MDCoralville, IA 522411790772051
- Ming Liu, MDCoralville, IA 522411699723635
- Joe Moonjely, MDCoralville, IA 522411215021753
Common questions
What is Carol Ann C. Tan, MD's NPI number?
Carol Ann C. Tan, MD's National Provider Identifier (NPI) is 1356455398, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carol Ann C. Tan, MD located?
The NPPES record lists a practice address at 2769 Heartland Dr, Coralville, IA, 52241. Phone: (319) 887-2900. Providers update this record themselves, so call before visiting.
How can I verify Carol Ann C. Tan, MD's license?
NPPES lists Iowa license number 40223, 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 Carol Ann C. Tan, MD prescribe under Medicare Part D?
In 2024, Carol Ann C. Tan, MD had 8,075 Medicare Part D claims for 415 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.