Mariana Harasawa, MD
NPI 1154785863 · Retina Specialist (Ophthalmology) Physician · Denver, CO
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariana Harasawa, MD is a Retina Specialist (Ophthalmology) Physician provider in Denver, CO (NPI 1154785863).
Provider details
- NPI number
- 1154785863
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- DR0065005 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 10350 E Dakota AveDenver, CO 80247-1314Phone: (303) 338-4545
Registry dates
- Enumerated
- 2016-04-08
- Last updated
- 2023-04-26
- Certified
- 2023-04-26
Frequently asked questions
- What is Mariana Harasawa's NPI number?
- Mariana Harasawa's National Provider Identifier (NPI) is 1154785863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariana Harasawa's specialty?
- Mariana Harasawa is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Mariana Harasawa located?
- Mariana Harasawa's practice location on file with NPPES is 55 Madison St Ste 355, Denver, CO 80206-5429.
- What is Mariana Harasawa's phone number?
- The practice phone number listed in the NPPES registry for Mariana Harasawa is (303) 377-2020.
- Does Mariana Harasawa accept Medicare?
- Mariana Harasawa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariana Harasawa's NPI active?
- Yes — Mariana Harasawa's NPI (1154785863) is active in the NPPES registry as of the last update on 2023-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.