Ryan Charles Mascarenhas, MD
Nephrology Physician · Highlands Ranch, CO
Ryan Charles Mascarenhas, MD is a nephrology physician with a practice address in Highlands Ranch, Colorado, and NPI 1710203682, issued on Apr 15, 2010. Check the license (Colorado DR.0067742, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Charles Mascarenhas
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- DR.0067742 CO
Self-reported in NPPES; status is on the state search - Practice location
- 8671 S Quebec St Ste 110, Highlands Ranch, CO 80130
- Phone
- (303) 327-4700
- Enumerated
- Apr 15, 2010
- Record last updated
- Sep 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20220120000570); 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 8671 S Quebec St Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sameer Bisarya, M.D.Nephrology Physician1255379426
- Johanna Carey, NPNurse Practitioner1700840774
- Kelsey FeltNurse Practitioner1821798166
- Laura Hope, NPAdult Health Nurse Practitioner1629845706
- David Kanar, M.D.Nephrology Physician1316930613
- Emily Quick, NPFamily Nurse Practitioner1457034704
Verify Ryan Charles Mascarenhas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0067742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average nephrology physician in 2024
763 Medicare Part D claims for 172 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Furosemide109 claims
- Losartan Potassium104 claims
- Amlodipine Besylate48 claims
- Carvedilol36 claims
- Farxiga33 claims
- Lisinopril31 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.
Industry payments in 2024: $3,093.76
37 payments; by number, the most common kind was food and beverage; the largest payer was Calliditas Therapeutics US 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 one group practice
- Denver Nephrologists PCHighlands Ranch, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Charles Mascarenhas among 182 nephrology physician records in Colorado
Ryan Charles Mascarenhas, 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 2010, is newer than 79% of them.
- NPI issued2010 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2010 · median 2002 among the 133 with a school on file
- Record last updated2025 · 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 Highlands Ranch → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Sameer Bisarya, M.D.Highlands Ranch, CO 801301255379426
- David Kanar, M.D.Highlands Ranch, CO 801301316930613
- Dmitri Sychev, MDHighlands Ranch, CO 801301881808277
- Sree Susarla, MRCP, MDParker, CO 801341114294279
- Geoffrey Block, MDLone Tree, CO 801241861474140
- Andrew Brookens, M.D.Lone Tree, CO 801241396035341
- Steven Fabian, M.D.Lone Tree, CO 801241942315668
- Bruce Fisch, MDLone Tree, CO 801241639151913
Common questions
What is Ryan Charles Mascarenhas, MD's NPI number?
Ryan Charles Mascarenhas, MD's National Provider Identifier (NPI) is 1710203682, issued on Apr 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Charles Mascarenhas, MD located?
The NPPES record lists a practice address at 8671 S Quebec St Ste 110, Highlands Ranch, CO, 80130. Phone: (303) 327-4700. Providers update this record themselves, so call before visiting.
How can I verify Ryan Charles Mascarenhas, MD's license?
NPPES lists Colorado license number DR.0067742, 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 Ryan Charles Mascarenhas, MD prescribe under Medicare Part D?
In 2024, Ryan Charles Mascarenhas, MD had 763 Medicare Part D claims for 172 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.