Karen Y. Anderson, MD
Internal Medicine Physician · Aurora, CO
Karen Y. Anderson, MD is an internal medicine physician with a practice address in Aurora, Colorado, and NPI 1336276377, issued on Feb 27, 2007. Check the license (Colorado 40380, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen Y. Anderson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 40380 CO
Self-reported in NPPES; status is on the state search - Practice location
- 14701 E Exposition Ave, Aurora, CO 80012
- Phone
- (303) 338-4545
- Enumerated
- Feb 27, 2007
- Record last updated
- May 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 72471557 CO
- Medicare enrollment
- Enrolled (PECOS I20080617000652); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1999
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 14701 E Exposition Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Douglas Altschuler, DOInternal Medicine Physician1770542177
- Chiraag Alur, MDFamily Medicine Physician1609368281
- Diane Angel, RNRegistered Nurse1457830614
- Shannon Archabal Lee, MDFamily Medicine Physician1568826857
- Dena ArvanitisGeneral Practice Registered Nurse1215791678
- Yaa Asare, MDInternal Medicine Physician1730765413
Verify Karen Y. Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 40380Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% more Medicare Part D claims than the average internal medicine physician in 2024
5,219 Medicare Part D claims for 425 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 199 claims were for opioids.
Most prescribed
- Atorvastatin Calcium371 claims
- Levothyroxine Sodium300 claims
- Lisinopril202 claims
- Omeprazole202 claims
- Amlodipine Besylate200 claims
- Losartan Potassium173 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: $85.59
2 payments; by number, the most common kind was food and beverage; the largest payer was Merz North America, Inc. 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 one group practice
- Colorado Permanente Medical Group PCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Y. Anderson among 2,046 internal medicine physician records in Colorado
Karen Y. Anderson, 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 39% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1999 · median 2006 among the 1,090 with a school on file
- Record last updated2021 · 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).
244 internal medicine physician records list a practice address in Aurora
They are 244 of the 17,400 NPPES records with a practice address in Aurora, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Aurora → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stephen Alix, M.D.Aurora, CO 800121063473361
- Douglas Altschuler, DOAurora, CO 800121770542177
- David Baez, MDAurora, CO 800121407896830
- Michael Barlow, M.D.Aurora, CO 800121598750283
- Gordon Deagman, M.D.Aurora, CO 800121346235439
- William Fell, MDAurora, CO 800121912994435
- Shabana Jiwani, M.D.Aurora, CO 800121609829365
- Danilo Mazzella, MDAurora, CO 800121265463756
Common questions
What is Karen Y. Anderson, MD's NPI number?
Karen Y. Anderson, MD's National Provider Identifier (NPI) is 1336276377, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karen Y. Anderson, MD located?
The NPPES record lists a practice address at 14701 E Exposition Ave, Aurora, CO, 80012. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Karen Y. Anderson, MD's license?
NPPES lists Colorado license number 40380, 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 Karen Y. Anderson, MD prescribe under Medicare Part D?
In 2024, Karen Y. Anderson, MD had 5,219 Medicare Part D claims for 425 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.