Susan T. Riley, NP
Nurse Practitioner · Columbia, MD
Susan T. Riley, NP is a nurse practitioner with a practice address in Columbia, Maryland, and NPI 1285100297, issued on Oct 17, 2018. Check the license (Maryland R186651, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Susan T. Riley
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- R186651 MD
26NJ00858900 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 5500 Knoll North Dr Ste 370, Columbia, MD 21045
- Phone
- (410) 837-2050
- Enumerated
- Oct 17, 2018
- Record last updated
- Sep 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211020003154); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,248 in Maryland → Look up another NPI →
Also registered at 5500 Knoll North Dr Ste 370
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Susan T. Riley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R186651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average nurse practitioner in 2024
778 Medicare Part D claims for 62 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium60 claims
- Amlodipine Besylate36 claims
- Albuterol Sulfate Hfa30 claims
- Losartan Potassium30 claims
- Levothyroxine Sodium19 claims
- Pravastatin Sodium19 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
- Chase Brexton Health Services IncBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan T. Riley among 1,248 nurse practitioner records in Maryland
Susan T. Riley, NP is one of 1,248 nurse practitioner records with a practice address in Maryland. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 55% of them.
- NPI issued2018 · 55% of these records are older, 41% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2018 · median 2018 among the 655 with a school on file
- Record last updated2021 · 48% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
47 nurse practitioner records list a practice address in Columbia
They are 47 of the 6,690 NPPES records with a practice address in Columbia, and 1,248 nurse practitioner records in Maryland.
All 1,248 in Maryland → Every provider in Columbia → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
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- Anne Gelber, NPColumbia, MD 210451902106214
- Susanne Gibbons, CRNPColumbia, MD 210451649287293
- Elizabeth Ioannacci, APNColumbia, MD 210451235604133
- Aline Jackie KemajouColumbia, MD 210451437746203
- Esther Mbiu, FNP- BCColumbia, MD 210451639880404
Common questions
What is Susan T. Riley, NP's NPI number?
Susan T. Riley, NP's National Provider Identifier (NPI) is 1285100297, issued on Oct 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Susan T. Riley, NP located?
The NPPES record lists a practice address at 5500 Knoll North Dr Ste 370, Columbia, MD, 21045. Phone: (410) 837-2050. Providers update this record themselves, so call before visiting.
How can I verify Susan T. Riley, NP's license?
NPPES lists Maryland license number R186651, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Susan T. Riley, NP prescribe under Medicare Part D?
In 2024, Susan T. Riley, NP had 778 Medicare Part D claims for 62 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.