LAUREN FRANCES SONTAG (M.D.) – Family Medicine Physician, NPI 1851684963
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,660 FAMILY PRACTICE in CO
Provider Addresses for LAUREN FRANCES SONTAG (M.D.)
978 EUCLID AVE
CARBONDALE, CO 816231839
Phone: (970) 963-3350
Fax: (970) 963-2958
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2014-12-19
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 |
|---|---|---|---|---|
| I20141219001238 | I | Family Practice | 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 |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 780 | 12 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 217 | 149 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 211 | 130 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 179 | 132 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 134 | 134 | $0 |
Insurance plans in this area (ZIP 81623)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | CO | |
| Physician Assistant | UT | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | CO | |
| - | CO | |
| Thoracic Surgery | ID | |
| - | CO | |
| Cardiovascular Disease (Cardiology) | CO | |
| - | CO | |
| U R O L O G Y | CO | |
| - | CO |
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