Carol Ann Tan, MD
NPI 1356455398 · Internal Medicine Physician · Coralville, IA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carol Ann Tan, MD is a Internal Medicine Physician provider in Coralville, IA (NPI 1356455398).
Provider details
- NPI number
- 1356455398
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036095755 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,430 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 594 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 323 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 186 | $120 |
| Administration of Pneumococcal VaccineG0009 | 65 | $30 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 63 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 116 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 491 | 121 |
| Atorvastatin Calcium | 415 | 105 |
| Rosuvastatin Calcium | 392 | 93 |
| Levothyroxine Sodium | 311 | 74 |
| Losartan Potassium | 291 | 71 |
| Metoprolol Succinate | 279 | 68 |
| Duloxetine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$160 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2016-12-22
Frequently asked questions
- What is Carol Ann Tan's NPI number?
- Carol Ann Tan's National Provider Identifier (NPI) is 1356455398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Ann Tan's specialty?
- Carol Ann Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carol Ann Tan located?
- Carol Ann Tan's practice location on file with NPPES is 2769 Heartland Dr, Coralville, IA 52241-2732.
- What is Carol Ann Tan's phone number?
- The practice phone number listed in the NPPES registry for Carol Ann Tan is (319) 887-2900.
- Does Carol Ann Tan accept Medicare?
- Carol Ann Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carol Ann Tan's NPI active?
- Yes — Carol Ann Tan's NPI (1356455398) is active in the NPPES registry as of the last update on 2016-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.