Andrew H. Chernaik, MD
Internal Medicine Physician · Louisville, CO
Andrew H. Chernaik, MD is an internal medicine physician with a practice address in Louisville, Colorado, and NPI 1306818620, issued on Feb 2, 2006. Check the license (Colorado CDRH.43063, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Andrew H. Chernaik
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- CDRH.43063 CO
Self-reported in NPPES; status is on the state search - Practice location
- 100 Health Park Dr, Louisville, CO 80027
- Phone
- (303) 673-1000
- Enumerated
- Feb 2, 2006
- Record last updated
- Jun 29, 2026
- Fax
- (303) 673-1204
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 100 Health Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Ahlberg, RDRegistered Dietitian1609217124
- Kimberly Beck, NNPNeonatal Nurse Practitioner1730811472
- Amy Berens, RDRegistered Dietitian1679152409
- Derek Berg, DOInternal Medicine Physician1194896969
- Jennifer Blair, M.D.Family Medicine Physician1053587741
- Yaicha Bryan, PAPhysician Assistant1689076861
Verify Andrew H. Chernaik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license CDRH.43063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
57 Medicare Part D claims for 43 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Andrew H. Chernaik among 2,046 internal medicine physician records in Colorado
Andrew H. Chernaik, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2026 · 61% 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 Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Colorado
There are 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Louisville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Derek Berg, DOLouisville, CO 800271194896969
- Jessica Dowgiert, PA-CLouisville, CO 800271558072025
- Lisa Iacofano, MDLouisville, CO 800271508891011
- Erik Mondrow, M.D.Louisville, CO 800271902944150
- David Pinsinski, MDSuperior, CO 800271972590107
- Lauren Shaw, M.D.Louisville, CO 800271043553753
- Richard Wills, MDLouisville, CO 800271912122938
- Tarika Barkhuysen, MDLafayette, CO 800261447711494
Common questions
What is Andrew H. Chernaik, MD's NPI number?
Andrew H. Chernaik, MD's National Provider Identifier (NPI) is 1306818620, issued on Feb 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrew H. Chernaik, MD located?
The NPPES record lists a practice address at 100 Health Park Dr, Louisville, CO, 80027. Phone: (303) 673-1000. Providers update this record themselves, so call before visiting.
How can I verify Andrew H. Chernaik, MD's license?
NPPES lists Colorado license number CDRH.43063, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew H. Chernaik, MD prescribe under Medicare Part D?
In 2024, Andrew H. Chernaik, MD had 57 Medicare Part D claims for 43 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.