Olga Angeli McLellan
Nurse Practitioner · Charlestown, MA
Olga Angeli McLellan is a nurse practitioner with a practice address in Charlestown, Massachusetts, and NPI 1942834858, issued on Feb 29, 2020. Check the license (Massachusetts 236422, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olga Angeli McLellan
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 236422 MA
Self-reported in NPPES; status is on the state search - Practice location
- 15 Tufts St, Charlestown, MA 02129
- Phone
- (857) 238-1100
- Enumerated
- Feb 29, 2020
- Record last updated
- May 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20200421001709); may accept Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
Also registered at 15 Tufts St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carolina Lamarque Angelillo, LMHCCounselor1841164746
- Sandra Leyan CastilloNurse Practitioner1548922875
Verify Olga Angeli McLellan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 236422Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average nurse practitioner in 2024
900 Medicare Part D claims for 186 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Gabapentin55 claims
- Atorvastatin Calcium41 claims
- Albuterol Sulfate Hfa29 claims
- Buprenorphine-Naloxone29 claims
- Omeprazole29 claims
- Ibuprofen26 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
- North End Community Health Committee, Inc.Boston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olga Angeli McLellan among 3,480 nurse practitioner records in Massachusetts
Olga Angeli McLellan is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 68% of them.
- NPI issued2020 · 68% of these records are older, 25% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2019 · median 2017 among the 1,963 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 nurse practitioner records list a practice address in Charlestown
They are 14 of the 421 NPPES records with a practice address in Charlestown, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Charlestown → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Meredith Cheney, FNP-BCCharlestown, MA 021291295167781
- Corrine Connors, NPBoston, MA 021291184764680
- Cindy Feliciano, NPCharlestown, MA 021291306986575
- Mia GilesCharlestown, MA 021291194338871
- Brian Henry, AGACNP-BCCharlestown, MA 021291033587415
- Caroline LebherzCharlestown, MA 021291063233906
- Sandra Leyan CastilloCharlestown, MA 021291548922875
- Antonia Makosky, NPBoston, MA 021291982610432
Common questions
What is Olga Angeli McLellan's NPI number?
Olga Angeli McLellan's National Provider Identifier (NPI) is 1942834858, issued on Feb 29, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Olga Angeli McLellan located?
The NPPES record lists a practice address at 15 Tufts St, Charlestown, MA, 02129. Phone: (857) 238-1100. Providers update this record themselves, so call before visiting.
How can I verify Olga Angeli McLellan's license?
NPPES lists Massachusetts license number 236422, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Olga Angeli McLellan prescribe under Medicare Part D?
In 2024, Olga Angeli McLellan had 900 Medicare Part D claims for 186 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.