IndividualActive
Colleen Obrien, RN
NPI 1972634574 · Registered Nurse · Ann Arbor, MI
Colleen Obrien, RN is a Registered Nurse provider in Ann Arbor, MI (NPI 1972634574).
Provider details
- NPI number
- 1972634574
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 4704168369 (MI)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Detailed profile(89/100 index)
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
2140 E Ellsworth Rd
Ann Arbor, MI 48108-2552
Phone: (734) 222-3500
Fax: (734) 971-2487
Street-level locationGet directions
Mailing address
555 Towner St
Ypsilanti, MI 48198-5752
Registry dates
- Enumerated
- 2007-03-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Colleen Obrien's NPI number?
- Colleen Obrien's National Provider Identifier (NPI) is 1972634574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Obrien's specialty?
- Colleen Obrien is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Colleen Obrien located?
- Colleen Obrien's practice location on file with NPPES is 2140 E Ellsworth Rd, Ann Arbor, MI 48108-2552.
- What is Colleen Obrien's phone number?
- The practice phone number listed in the NPPES registry for Colleen Obrien is (734) 222-3500.
- Is Colleen Obrien's NPI active?
- Yes — Colleen Obrien's NPI (1972634574) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.