Roger Oss Farquharson
Family Nurse Practitioner · Chicago, IL
Roger Oss Farquharson is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1710324603, issued on May 31, 2013. Check the license (Illinois 209-010160, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Roger Oss Farquharson
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 209-010160 IL
Self-reported in NPPES; status is on the state search - Practice location
- 151 N State St, Chicago, IL 60601
- Phone
- (800) 323-8622
- Enumerated
- May 31, 2013
- Record last updated
- Jun 27, 2022
- Fax
- (224) 225-0393
- Medicare enrollment
- Enrolled (PECOS I20151001001943); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 151 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roger Oss Farquharson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209-010160Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average family nurse practitioner in 2024
255 Medicare Part D claims for 167 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Albuterol Sulfate Hfa21 claims
- Fluticasone Propionate20 claims
- Penicillin V Potassium18 claims
- Ibuprofen16 claims
- Prednisone16 claims
- Nitrofurantoin Mono-Macro15 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
- Advocate Health And Hospitals CorporationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roger Oss Farquharson among 7,639 family nurse practitioner records in Illinois
Roger Oss Farquharson is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% 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 17% of them.
- NPI issued2013 · 17% of these records are older, 80% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2018 among the 4,778 with a school on file
- Record last updated2022 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,567 family nurse practitioner records list a practice address in Chicago
They are 1,567 of the 63,379 NPPES records with a practice address in Chicago, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Chicago → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
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- Christine ContrerasChicago, IL 606011245865906
- Paige Dennis, DNP, FNP-BCChicago, IL 606011053951855
- Cyril Ezeanyagu, FNPChicago, IL 606011639996721
- Shannon Kimsey, FPA, APRNChicago, IL 606011023448073
- Laura Loeser, NP- BCChicago, IL 606011114386752
- Ruth Orbe, NP-CChicago, IL 606011598546640
Common questions
What is Roger Oss Farquharson's NPI number?
Roger Oss Farquharson's National Provider Identifier (NPI) is 1710324603, issued on May 31, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Roger Oss Farquharson located?
The NPPES record lists a practice address at 151 N State St, Chicago, IL, 60601. Phone: (800) 323-8622. Providers update this record themselves, so call before visiting.
How can I verify Roger Oss Farquharson's license?
NPPES lists Illinois license number 209-010160, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Roger Oss Farquharson prescribe under Medicare Part D?
In 2024, Roger Oss Farquharson had 255 Medicare Part D claims for 167 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.