Rosemary Ongaki, NP-C
Nurse Practitioner · Dover, DE
Rosemary Ongaki, NP-C is a nurse practitioner with a practice address in Dover, Delaware, and NPI 1487085361, issued on Dec 3, 2013. Check the license (Delaware LG-0000695, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rosemary Ongaki
- Credential
- NP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- LG-0000695 DE
Self-reported in NPPES; status is on the state search - Practice location
- 640 S Queen St, Dover, DE 19904
- Phone
- (302) 734-2444
- Enumerated
- Dec 3, 2013
- Record last updated
- Jul 31, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140306000057); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 545 in Delaware → Look up another NPI →
Also registered at 640 S Queen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tutse Tonwe, MDFamily Medicine Physician1164437513
Verify Rosemary Ongaki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license LG-0000695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% more Medicare Part D claims than the average nurse practitioner in 2024
1,266 Medicare Part D claims for 187 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 140 claims were for opioids.
Most prescribed
- Tramadol Hcl72 claims
- Atorvastatin Calcium57 claims
- Levothyroxine Sodium57 claims
- Trazodone Hcl54 claims
- Omeprazole32 claims
- Oxycodone Hcl32 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.
The MIPS final score for 2023 (Medicare payment program): 88.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $74.59
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Geriatric Medicine Consultants PAWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rosemary Ongaki among 545 nurse practitioner records in Delaware
Rosemary Ongaki, NP-C is one of 545 nurse practitioner records with a practice address in Delaware. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 41% of them.
- NPI issued2013 · 41% of these records are older, 55% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2012 · median 2017 among the 291 with a school on file
- Record last updated2014 · 51% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 nurse practitioner records list a practice address in Dover
They are 59 of the 2,137 NPPES records with a practice address in Dover, and 545 nurse practitioner records in Delaware.
All 545 in Delaware → Every provider in Dover → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Linda Ashley, CFNPDover, DE 199041033234810
- Carole Breitkreitz, NPDover, DE 199041255571998
- Eugenia Caternor, CRNPDover, DE 199041154695948
- Tricia Delnay, ACNP-BC, DNPDover, DE 199041134302235
- Timothy Eden, AGACNP-BCDover, DE 199041497936652
- Adrianne Fisher, FNP-BCDover, DE 199041447694393
- Adetokunbo Fisher, NPDover, DE 199041356728232
- Judith Heap, MSNDover, DE 199041568459428
Common questions
What is Rosemary Ongaki, NP-C's NPI number?
Rosemary Ongaki, NP-C's National Provider Identifier (NPI) is 1487085361, issued on Dec 3, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Rosemary Ongaki, NP-C located?
The NPPES record lists a practice address at 640 S Queen St, Dover, DE, 19904. Phone: (302) 734-2444. Providers update this record themselves, so call before visiting.
How can I verify Rosemary Ongaki, NP-C's license?
NPPES lists Delaware license number LG-0000695, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Rosemary Ongaki, NP-C prescribe under Medicare Part D?
In 2024, Rosemary Ongaki, NP-C had 1,266 Medicare Part D claims for 187 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Rosemary Ongaki, NP-C's MIPS final score?
The 2023 MIPS final score is 88.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.