Kelly Tan, M.D.
NPI 1023299799 · Internal Medicine Physician · Long Grove, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kelly Tan, M.D. is a Internal Medicine Physician provider in Long Grove, IL (NPI 1023299799).
Provider details
- NPI number
- 1023299799
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036119745 (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
18 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
1,007 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 712 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 116 | $116 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 82 | $176 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 26 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $131 |
| Critical Care, First 30-74 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 185 | 53 |
| Amlodipine Besylate | 127 | 41 |
| Levothyroxine Sodium | 119 | 33 |
| Metoprolol Succinate | 115 | 33 |
| Furosemide | 109 | 30 |
| Apixabanbrand: Eliquis | 94 | 19 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (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
- 2007-11-21
- Last updated
- 2023-03-07
- Certified
- 2021-12-28
Frequently asked questions
- What is Kelly Tan's NPI number?
- Kelly Tan's National Provider Identifier (NPI) is 1023299799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kelly Tan's specialty?
- Kelly Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kelly Tan located?
- Kelly Tan's practice location on file with NPPES is 3880 Salem Lake Dr, Long Grove, IL 60047-5292.
- What is Kelly Tan's phone number?
- The practice phone number listed in the NPPES registry for Kelly Tan is (847) 719-2220.
- Does Kelly Tan accept Medicare?
- Kelly Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kelly Tan's NPI active?
- Yes — Kelly Tan's NPI (1023299799) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.