Brenda C. Eiser, MD
Internal Medicine Physician · Lone Tree, CO
Brenda C. Eiser, MD is an internal medicine physician with a practice address in Lone Tree, Colorado, and NPI 1215164181, issued on Jun 17, 2009. Check the license (Colorado 51326, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brenda C. Eiser
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 51326 CO
TL3358 CO
Self-reported in NPPES; status is on the state search - Practice location
- 10101 Ridgegate Pkwy, Lone Tree, CO 80124
- Phone
- (303) 338-4545
- Enumerated
- Jun 17, 2009
- Record last updated
- May 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 33023824 CO
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 10101 Ridgegate Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ellen Blatt, M.D.Diagnostic Radiology Physician1730165911
Verify Brenda C. Eiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 51326Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
113 Medicare Part D claims for 61 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of 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.
Brenda C. Eiser among 2,046 internal medicine physician records in Colorado
Brenda C. Eiser, 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 2009, is newer than 65% of them.
- NPI issued2009 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- 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).
50 internal medicine physician records list a practice address in Lone Tree
They are 50 of the 1,405 NPPES records with a practice address in Lone Tree, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Lone Tree → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christopher Blicharski, M.D.Lone Tree, CO 801241548276975
- David Burrows, MD, FACPLone Tree, CO 801241215072160
- Andrzej Dankowski, MDLone Tree, CO 801241326014507
- Cristian Dinescu, MDLone Tree, CO 801241750302790
- Anna Gutmann, M.D.Lone Tree, CO 801241083887392
- Laura Haseganu, M.D.Lone Tree, CO 801241730347907
- Egor Kuznetsov, M.D.Lone Tree, CO 801241639337165
- Michael Mignoli, MDLone Tree, CO 801241255394722
Common questions
What is Brenda C. Eiser, MD's NPI number?
Brenda C. Eiser, MD's National Provider Identifier (NPI) is 1215164181, issued on Jun 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Brenda C. Eiser, MD located?
The NPPES record lists a practice address at 10101 Ridgegate Pkwy, Lone Tree, CO, 80124. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Brenda C. Eiser, MD's license?
NPPES lists Colorado license number 51326, 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 Brenda C. Eiser, MD prescribe under Medicare Part D?
In 2024, Brenda C. Eiser, MD had 113 Medicare Part D claims for 61 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.