Isabella Osiemo, CRNP
Gerontology Nurse Practitioner · Rosedale, MD
Isabella Osiemo, CRNP is a gerontology nurse practitioner with a practice address in Rosedale, Maryland, and NPI 1821637349, issued on Jan 1, 2020. Check the license (Maryland R202111, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabella Osiemo
- Credential
- CRNP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- R202111 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1232 Race RD Ste 403, Rosedale, MD 21237
- Phone
- (480) 878-7806
- Enumerated
- Jan 1, 2020
- Record last updated
- Mar 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (443) 732-0054
- Medicare enrollment
- Enrolled (PECOS I20200221000024); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 199 in Maryland → Look up another NPI →
Also registered at 1232 Race RD Ste 403
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dipa Adhikari, NPFamily Nurse Practitioner1720635774
- Morenike Agboola, NPFamily Nurse Practitioner1811469414
- Thanga BosemaniPsychiatric/Mental Health Nurse Practitioner1841871126
- Leah Gecheo, CRNPFamily Nurse Practitioner1730963786
- Victoria Pender, CRNPPsychiatric/Mental Health Nurse Practitioner1679114755
Verify Isabella Osiemo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R202111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average gerontology nurse practitioner in 2024
1,477 Medicare Part D claims for 207 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. 209 claims were for opioids.
Most prescribed
- Oxycodone Hcl84 claims
- Atorvastatin Calcium71 claims
- Tramadol Hcl53 claims
- Warfarin Sodium48 claims
- Pantoprazole Sodium44 claims
- Oxycontin43 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
- Optimize Medical GroupLandover, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isabella Osiemo among 199 gerontology nurse practitioner records in Maryland
Isabella Osiemo, CRNP is one of 199 gerontology nurse practitioner records with a practice address in Maryland. 69% 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 61% of them.
- NPI issued2020 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2019 · median 2019 among the 98 with a school on file
- Record last updated2020 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Maryland
There are 199 gerontology nurse practitioner records in Maryland.
All 199 in Maryland → Every provider in Rosedale → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Grace Efeyini, AGPCNPRosedale, MD 212371437844826
- Jecinta Ogbennah, CRNPBaltimore, MD 212371750920179
- Lauren Flowers, MSN, APRN, AGNP-CNottingham, MD 212361649839218
- Carolina Delacruz, DNP, CRNP, FNP-BCBaltimore, MD 212391578114229
- Toni Durham, CRNPBaltimore, MD 212391750384038
- Carrie Wheeler, GNP-CBaltimore, MD 212391922075894
- Susan Anthony, CRNP, MSBaltimore, MD 212341346271657
- Laraba AdejoWindsor Mill, MD 212441225762990
Common questions
What is Isabella Osiemo, CRNP's NPI number?
Isabella Osiemo, CRNP's National Provider Identifier (NPI) is 1821637349, issued on Jan 1, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Isabella Osiemo, CRNP located?
The NPPES record lists a practice address at 1232 Race RD Ste 403, Rosedale, MD, 21237. Phone: (480) 878-7806. Providers update this record themselves, so call before visiting.
How can I verify Isabella Osiemo, CRNP's license?
NPPES lists Maryland license number R202111, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Isabella Osiemo, CRNP prescribe under Medicare Part D?
In 2024, Isabella Osiemo, CRNP had 1,477 Medicare Part D claims for 207 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.