Caitlin E. Olsen, NP
Psychiatric/Mental Health Nurse Practitioner · Marlborough, MA
Caitlin E. Olsen, NP is a psychiatric/mental health nurse practitioner with a practice address in Marlborough, Massachusetts, and NPI 1669750378, issued on Jul 29, 2011. Check the license (Massachusetts RN2264350, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caitlin E. Olsen
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RN2264350 MA
Self-reported in NPPES; status is on the state search - Practice location
- 159 Union St, Marlborough, MA 01752
- Phone
- (508) 624-9687
- Enumerated
- Jul 29, 2011
- Record last updated
- Jul 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20111103000223); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Also registered at 159 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Caitlin E. Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2264350Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.9 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
6,248 Medicare Part D claims for 1,176 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Eliquis966 claims
- Metoprolol Succinate729 claims
- Atorvastatin Calcium565 claims
- Rosuvastatin Calcium379 claims
- Furosemide342 claims
- Amlodipine Besylate334 claims
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
- Umass Memorial Medical Group IncMarlborough, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caitlin E. Olsen among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Caitlin E. Olsen, NP is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 13% of them.
- NPI issued2011 · 13% of these records are older, 84% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2011 · median 2021 among the 1,309 with a school on file
- Record last updated2022 · 23% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 psychiatric/mental health nurse practitioner records list a practice address in Marlborough
They are 16 of the 3,071 NPPES records with a practice address in Marlborough, and 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Marlborough → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Herman AinebyonaMarlborough, MA 017521730058009
- Deirdre Chafe, CNPMarlborough, MA 017521770131609
- Melanie Daley, RNMarlborough, MA 017521982204426
- Grace Diamond, NPMarlborough, MA 017521619843604
- Kathleen HoffmanMarlborough, MA 017521275561995
- Meaghan Hoyt-Thompson, DNP, PMHNP-BCMarlborough, MA 017521558198838
- Debra Koopman, MS, PMHNP-BCMarlborough, MA 017521326325945
- Christina MoffordMarlborough, MA 017521295754620
Common questions
What is Caitlin E. Olsen, NP's NPI number?
Caitlin E. Olsen, NP's National Provider Identifier (NPI) is 1669750378, issued on Jul 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Caitlin E. Olsen, NP located?
The NPPES record lists a practice address at 159 Union St, Marlborough, MA, 01752. Phone: (508) 624-9687. Providers update this record themselves, so call before visiting.
How can I verify Caitlin E. Olsen, NP's license?
NPPES lists Massachusetts license number RN2264350, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Caitlin E. Olsen, NP prescribe under Medicare Part D?
In 2024, Caitlin E. Olsen, NP had 6,248 Medicare Part D claims for 1,176 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.