CAITLIN E OLSEN NP
NPI 1669750378
Nurse Practitioner - Psychiatric/Mental Health in Marlborough, MA
About Caitlin E Olsen Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAITLIN E OLSEN NP (NPI 1669750378) is an individual psychiatric/mental health provider in Marlborough, Massachusetts, licensed in Massachusetts (RN2264350) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Healthalliance Hospitals, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Caitlin E Olsen Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Caitlin Olsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 451 clinicians in this Medicare group
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Healthalliance Hospitals
Acute Care Hospitals · Leominster, MAUmass Memorial Healthcare-Marlborough Hospital
Acute Care Hospitals · Marlborough, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01752 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARLBOROUGH, MA 01752
MARLBOROUGH, MA 01752
MARLBOROUGH, MA 01752
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Caitlin Olsen's NPI number?
The NPI number for Caitlin Olsen is 1669750378. It was assigned to this individual provider in the NPPES registry on July 29, 2011.
Where is Caitlin Olsen located?
Caitlin Olsen practices at 159 Union St, Marlborough, MA 01752. The listed phone number is (508) 624-9687.
What is Caitlin Olsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Caitlin Olsen enrolled in Medicare?
Yes. Caitlin Olsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Caitlin Olsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caitlin Olsen reassigns Medicare benefits to 2 organizations: Emerson Practice Associates, Inc. (Concord, MA) and Umass Memorial Medical Group Inc (Worcester, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Caitlin Olsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Caitlin Olsen accept?
Health plans from Anthem Blue Cross and Blue Shield list Caitlin Olsen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Caitlin Olsen affiliated with any hospitals?
According to CMS data, Caitlin Olsen is affiliated with Umass Memorial Healthalliance Hospitals, Umass Memorial Healthcare-Marlborough Hospital and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Caitlin Olsen was last updated on July 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Caitlin E Olsen, NP · NPI 1669750378
Psychiatric/Mental Health physician in Marlborough, Massachusetts. Individual provider, active in the CMS NPPES registry since July 29, 2011.
## Identity
- **NPI:** 1669750378 (Entity type: Individual)
- **Enumerated:** July 29, 2011
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** RN2264350 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 159 UNION ST, Marlborough, MA 01752-1274
- **Phone:** (508) 624-9687
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Emerson Practice Associates, Inc. (NPI 1508020199, Concord, MA); Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** July 18, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1669750378) · Data from the CMS NPPES public registry.