Isabella Osiemo, CRNP
NPI 1821637349 · Gerontology Nurse Practitioner · Rosedale, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabella Osiemo, CRNP is a Gerontology Nurse Practitioner provider in Rosedale, MD (NPI 1821637349).
Provider details
- NPI number
- 1821637349
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R202111 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,547 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,285 | $65 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,137 | $94 |
| Nursing Facility Discharge Day Management, 30 Minutes Or Less99315 | 83 | $71 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 30 | $134 |
| Advance Care Planning, First 30 Minutes99497 | 12 | $65 |
Typical Medicare-allowed amounts for these services range $65–$134 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 84 | 34 |
| Atorvastatin Calcium | 71 | 44 |
| Tramadol Hcl | 53 | 12 |
| Warfarin Sodium | 48 | 11 |
| Pantoprazole Sodium | 44 | 23 |
| Oxycodone Hclbrand: Oxycontin | 43 | — |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-01-01
- Last updated
- 2020-03-25
- Certified
- 2020-03-25
Frequently asked questions
- What is Isabella Osiemo's NPI number?
- Isabella Osiemo's National Provider Identifier (NPI) is 1821637349, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabella Osiemo's specialty?
- Isabella Osiemo is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Isabella Osiemo located?
- Isabella Osiemo's practice location on file with NPPES is 1232 Race Rd Ste 403, Rosedale, MD 21237-2386.
- What is Isabella Osiemo's phone number?
- The practice phone number listed in the NPPES registry for Isabella Osiemo is (480) 878-7806.
- Does Isabella Osiemo accept Medicare?
- Isabella Osiemo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabella Osiemo's NPI active?
- Yes — Isabella Osiemo's NPI (1821637349) is active in the NPPES registry as of the last update on 2020-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.