Mariana Harasawa, MD
Retina Specialist (Ophthalmology) Physician · Denver, CO
Mariana Harasawa, MD is a retina specialist (ophthalmology) physician with a practice address in Denver, Colorado, and NPI 1154785863, issued on Apr 8, 2016. Check the license (Colorado DR.0065005, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mariana Harasawa
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License numbers
- DR.0065005 CO
DR0065005 CO
Self-reported in NPPES; status is on the state search - Practice location
- 55 Madison St Ste 355, Denver, CO 80206
- Phone
- (303) 377-2020
- Enumerated
- Apr 8, 2016
- Record last updated
- Apr 26, 2023
- Medicaid ID
- 9000164548 CO
- Medicare enrollment
- Enrolled (PECOS I20210405001479); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 55 in Colorado → Look up another NPI →
Also registered at 55 Madison St Ste 355
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kiok Cho, ANP-BCAdult Health Nurse Practitioner1003101627
- James Dowgin, ODOptometrist1386271443
- Alexis Kyle, ODOptometrist1689591539
- Eugene Wiggs, M.D.Specialist1992741961
- Betty Zhang, ODOptometrist1053833681
Verify Mariana Harasawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0065005Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
30 Medicare Part D claims for 11 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Colorado Permanente Medical Group PCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariana Harasawa among 55 retina specialist (ophthalmology) physician records in Colorado
Mariana Harasawa, MD is one of 55 retina specialist (ophthalmology) physician records with a practice address in Colorado. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 65% of them.
- NPI issued2016 · 65% of these records are older, 25% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 91% of these records are
- Graduated2020 · median 2012 among the 50 with a school on file
- Record last updated2023 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in Colorado
There are 55 retina specialist (ophthalmology) physician records in Colorado.
All 55 in Colorado → Every provider in Denver → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Paul Micevych, MDLakewood, CO 802281023563277
- Andrew Zheng, MDLakewood, CO 802281366804809
- Catherine Zhu, MDLakewood, CO 802281558947564
- Nancy Christmas, MDDenver, CO 802301619927456
- Brian Joondeph, MDDenver, CO 802301932151230
- Alan Kimura, MDDenver, CO 802301851343214
- Miriah Teeter, M.D.Denver, CO 802301316141872
- Diana Reeves, M.D.Denver, CO 802461386625044
Common questions
What is Mariana Harasawa, MD's NPI number?
Mariana Harasawa, MD's National Provider Identifier (NPI) is 1154785863, issued on Apr 8, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mariana Harasawa, MD located?
The NPPES record lists a practice address at 55 Madison St Ste 355, Denver, CO, 80206. Phone: (303) 377-2020. Providers update this record themselves, so call before visiting.
How can I verify Mariana Harasawa, MD's license?
NPPES lists Colorado license number DR.0065005, 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 Mariana Harasawa, MD prescribe under Medicare Part D?
In 2024, Mariana Harasawa, MD had 30 Medicare Part D claims for 11 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. 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.