Dr. Brenda C Eiser , MD
Internal Medicine β’ Lonetree, CO
10101 Ridgegate Pkwy
Lonetree, CO 801245522
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Brenda Eiser is listed in NPPES under Internal Medicine.
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NPI assigned on June 17, 2009; this date does not establish years in practice.
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Published CMS data list 98 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Pradaxa (Dabigatran Etexilate Mesylate) β 35 prescription fills, including refills.
- Levofloxacin β 13 prescription fills, including refills.
- Oxycodone Hcl β 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 11 in 2017 to 98 in 2022.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017β2022.
Practice Location & Contact Primary Location
10101 Ridgegate Pkwy
Lonetree, CO 801245522
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
136 standardized 30-day fills in 2022
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$12,357 in 2022
The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2022.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $216.97 in 2023
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2023.
NPI first issued
2009
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Eiser has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Eiser as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Lonetree and Colorado
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Eiser are from 2022.
2 active clinicians are listed under Internal Medicine with a practice address in Lonetree, CO (2,053 in Colorado).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 11 in 2017 to 98 in 2022.
- 2017: 11
- 2018: 27
- 2019: 29
- 2021: 64
- 2022: 98
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30-day fills
30-day fills went from 11 in 2017 to 136 in 2022.
- 2017: 11
- 2018: 40
- 2019: 52
- 2021: 104
- 2022: 136
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Part D drug cost
Part D drug cost went from $86 in 2017 to $12,357 in 2022.
- 2017: $86
- 2018: $3,312
- 2019: $11,580
- 2021: $13,037
- 2022: $12,357
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Part D Prescribers (2022), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 β December 31, 2023): fewer than 11 records totaling $216.97.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Inari Medical, Inc. |
Food and Beverage
In-kind items and services
|
FLOWTRIEVER CATHETER, S | General | $216.97 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Pradaxa | Dabigatran Etexilate Mesylate | 35 | 1,835 | $11,822.71 | 18 |
| Levofloxacin | Levofloxacin | 13 | 77 | $95.62 | 12 |
| Oxycodone Hcl | Oxycodone Hcl | 13 | 40 | $86.27 | 13 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 13 | 56 | $131.66 | 13 |
| Prednisone | Prednisone | 12 | 94 | $87.92 | 12 |
| Metoprolol Succinate | Metoprolol Succinate | 12 | 660 | $132.62 | 11 |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-05-07NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20120918000493
CO
6800044751
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner
Internal Medicine - Hospice and Palliative Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Practitioner
Physician Assistant - Medical
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 10350 E DAKOTA AVE, DENVER, CO 802471314 (Tel: 3033383800)
NPI status registered as active in NPPES database
Registered at 10101 RIDGEGATE PKWY, LONETREE, CO 801245522 (Tel: 3033384545)
Registered at 10101 RIDGEGATE PKWY, LONETREE, CO 801245522 (Tel: 3033384545)
Recorded as BRENDA EISER, MD
Internal Medicine (license number reported to NPPES: CO 51326)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
10350 E Dakota Ave
Denver, CO 802471314
Phone: 3033383800