Mark C. Saddler, MD
Nephrology Physician · Durango, CO
Mark C. Saddler, MD is a nephrology physician with a practice address in Durango, Colorado, and NPI 1821062282, issued on Feb 14, 2006. Check the license (Colorado 34567, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark C. Saddler
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 34567 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1010 Three Springs Blvd, Durango, CO 81301
- Phone
- (970) 764-3825
- Enumerated
- Feb 14, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (970) 764-3839
- Medicaid ID
- 91912964 CO
- Medicare enrollment
- Enrolled (PECOS I20050111001074); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 182 in Colorado → Look up another NPI →
Also registered at 1010 Three Springs Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charles Black, MDSurgery Physician1497764187
- Richard Brown, MDCritical Care Medicine (Internal Medicine) Physician1003889627
- Sarah Brown, MDHospitalist Physician1124112818
- Laurie Carpino, FNPFamily Nurse Practitioner1811960784
Verify Mark C. Saddler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 34567Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average nephrology physician in 2024
1,809 Medicare Part D claims for 205 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Losartan Potassium186 claims
- Jardiance135 claims
- Amlodipine Besylate130 claims
- Torsemide127 claims
- Lisinopril102 claims
- Carvedilol85 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $20.44
1 payment: food and beverage; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Catholic Health Initiatives ColoradoDurango, CO
- Southern Ute Indian TribeIgnacio, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark C. Saddler among 182 nephrology physician records in Colorado
Mark C. Saddler, MD is one of 182 nephrology physician records with a practice address in Colorado. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 28% of them.
- NPI issued2006 · 28% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1983 · median 2002 among the 133 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Colorado
There are 182 nephrology physician records in Colorado.
All 182 in Colorado → Every provider in Durango → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Isaac Hall, MD, MSDurango, CO 813011184899981
- Elizabeth Helms, MDDurango, CO 813011144293010
- Rhonda Webb, MDPagosa Springs, CO 811471598762494
- Matthew Cyphers, MDGrand Junction, CO 815011437110954
- Kathryn Jones, MDGrand Junction, CO 815011154775179
- Duncan McGregorGrand Junction, CO 815011144409483
- Barry Sobel, MDGrand Junction, CO 815011326145038
- Joseph Harawi, M.D.Grand Junction, CO 815061154465888
Common questions
What is Mark C. Saddler, MD's NPI number?
Mark C. Saddler, MD's National Provider Identifier (NPI) is 1821062282, issued on Feb 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark C. Saddler, MD located?
The NPPES record lists a practice address at 1010 Three Springs Blvd, Durango, CO, 81301. Phone: (970) 764-3825. Providers update this record themselves, so call before visiting.
How can I verify Mark C. Saddler, MD's license?
NPPES lists Colorado license number 34567, 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 Mark C. Saddler, MD prescribe under Medicare Part D?
In 2024, Mark C. Saddler, MD had 1,809 Medicare Part D claims for 205 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Mark C. Saddler, MD's MIPS final score?
The 2023 MIPS final score is 88.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.