Lauren Frances Sontag, M.D.
Family Medicine Physician · Carbondale, CO
Lauren Frances Sontag, M.D. is a family medicine physician with a practice address in Carbondale, Colorado, and NPI 1851684963, issued on May 23, 2011. Check the license (Colorado 51752, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Lauren Frances Sontag
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 51752 CO
3896 CO
Self-reported in NPPES; status is on the state search - Practice location
- 978 Euclid Ave, Carbondale, CO 81623
- Phone
- (970) 963-3350
- Enumerated
- May 23, 2011
- Record last updated
- Sep 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (970) 963-2958
- Medicare enrollment
- Enrolled (PECOS I20141219001238); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 978 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ivy Chalmers, PACMedical Physician Assistant1376673582
- Andrew Gisleson, D.O.Family Medicine Physician1679913560
- Shana LightFamily Nurse Practitioner1629670096
- Karen Locke, MDFamily Medicine Physician1992708622
- Daniel Smith, DOFamily Medicine Physician1245225093
Verify Lauren Frances Sontag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 51752Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average family medicine physician in 2024
2,108 Medicare Part D claims for 225 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 69 claims were for opioids.
Most prescribed
- Atorvastatin Calcium207 claims
- Levothyroxine Sodium184 claims
- Losartan Potassium84 claims
- Metformin Hcl81 claims
- Amlodipine Besylate72 claims
- Gabapentin59 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.
One hospital affiliation
- Valley View Hospital AssociationGlenwood Spgs, CO · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Lauren Frances Sontag among 3,563 family medicine physician records in Colorado
Lauren Frances Sontag, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.
- NPI issued2011 · 67% of these records are older, 31% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2011 · median 2008 among the 2,077 with a school on file
- Record last updated2015 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family medicine physician records list a practice address in Carbondale
They are 9 of the 163 NPPES records with a practice address in Carbondale, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Carbondale → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Andrew Gisleson, D.O.Carbondale, CO 816231679913560
- Richard Herrington, MDCarbondale, CO 816231376619916
- Gary Knaus, M.D.Carbondale, CO 816231659447290
- Chad Knaus, M.D.Carbondale, CO 816231114174422
- Karen Locke, MDCarbondale, CO 816231992708622
- Daniel Smith, DOCarbondale, CO 816231245225093
- Kimball Spence, DOCarbondale, CO 816231295801835
- Elizabeth Spidell, D.O.Carbondale, CO 816231700972809
Common questions
What is Lauren Frances Sontag, M.D.'s NPI number?
Lauren Frances Sontag, M.D.'s National Provider Identifier (NPI) is 1851684963, issued on May 23, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Frances Sontag, M.D. located?
The NPPES record lists a practice address at 978 Euclid Ave, Carbondale, CO, 81623. Phone: (970) 963-3350. Providers update this record themselves, so call before visiting.
How can I verify Lauren Frances Sontag, M.D.'s license?
NPPES lists Colorado license number 51752, 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 Lauren Frances Sontag, M.D. prescribe under Medicare Part D?
In 2024, Lauren Frances Sontag, M.D. had 2,108 Medicare Part D claims for 225 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.