Melissa Olken, MD, PHD
NPI 1265540611 · Internal Medicine Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Olken, MD, PHD is a Internal Medicine Physician provider in Ann Arbor, MI (NPI 1265540611).
Provider details
- NPI number
- 1265540611
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301054011 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-08-27
- Last updated
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Melissa Olken's NPI number?
- Melissa Olken's National Provider Identifier (NPI) is 1265540611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Olken's specialty?
- Melissa Olken is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Melissa Olken located?
- Melissa Olken's practice location on file with NPPES is 2215 Fuller Rd, Ann Arbor, MI 48105-2303.
- What is Melissa Olken's phone number?
- The practice phone number listed in the NPPES registry for Melissa Olken is (734) 769-7100.
- Does Melissa Olken accept Medicare?
- Melissa Olken is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Olken's NPI active?
- Yes — Melissa Olken's NPI (1265540611) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.