DR. LINDSEY M RENTSCHLER (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1235251901
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
135 ENDOCRINOLOGY in CO
Provider Addresses for DR. LINDSEY M RENTSCHLER (M.D.)
5450 WESTERN AVE
BOULDER, CO 803012709
Phone: (303) 415-4344
Fax: (303) 425-9259
Type: Mailing
3 SUPERIOR DR STE 100C
SUPERIOR, CO 800278653
Phone: (303) 415-4344
Fax: (303) 425-9259
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $89.
Total Amount is formed as General ($89) + Research ($0) + Ownership ($0) = $89.
Last reported payment date: 2024-03-29 • Largest payer in this snapshot: Dexcom, Inc. ($33).
Total Amount
$89
General + Research + Ownership
Payments
5
Total payment records
General Amount
$89
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Dexcom, Inc. | $33 |
| Insulet Corporation | $20 |
| Abbott Laboratories | $18 |
| Medtronic, Inc. | $17 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-09-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100921001514 | I | Endocrinology | CO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 405 | 221 | $0 |
| 83036 | Hemoglobin a1c level | 156 | 79 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 69 | 37 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 44 | 43 | $0 |
| G0008 | Administration of influenza virus vaccine | 26 | 26 | $0 |
Insurance plans in this area (ZIP 80301)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ENDOCRINOLOGY | CO | 83036 | Hemoglobin A1C level | 93 | 48 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CO | |
| Family Practice | CO | |
| Internal Medicine | MI | |
| - | CO | |
| Hospitalist, Internal Medicine | CO | |
| Vascular Surgery | CO | |
| - | CO | |
| - | CO | |
| Internal Medicine | CO | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology | CO |
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