NPPES file of Aug 9, 2026

Ruth M. Diamond, FNP-BC

Family Nurse Practitioner · Chicago, IL

Ruth M. Diamond, FNP-BC is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1013255975, issued on Jan 27, 2013. Check the license (Illinois 209.010098, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013255975
Name
Ruth M. Diamond
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209.010098 IL
Self-reported in NPPES; status is on the state search
Practice location
2361 Paysphere Cir, Chicago, IL 60674
Phone
(847) 746-4358
Enumerated
Jan 27, 2013
Record last updated
Jan 10, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(847) 918-8059
Medicare enrollment
Enrolled (PECOS I20140116001344); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2361 Paysphere Cir

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eugene Ahn, M.D.Medical Oncology Physician1093911307
  2. Irina AleynikovaOther Specialist/Technologist1407833023
  3. Aric Blom, PA-CPhysician Assistant1114905411
  4. Yiping Fu, M.D.Pulmonary Disease Physician1043205107
  5. Joel Granick, MDSpecialist1700864378
  6. Solomon Katta, M.D.Family Medicine Physician1265668750

Verify Ruth M. Diamond in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209.010098
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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71% fewer Medicare Part D claims than the average family nurse practitioner in 2024

380 Medicare Part D claims for 95 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Ruth Diamond380
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium43 claims
  2. Metformin Hcl22 claims
  3. Losartan Potassium18 claims
  4. Lisinopril16 claims
  5. Lantus Solostar15 claims
  6. Amlodipine Besylate14 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.

Industry payments in 2024: $1,410.73

47 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ruth Diamond$1,410.73
  2. Specialty average$650.95

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

  1. City OF Hope Medical Group OF Illinois PLLCZion, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ruth M. Diamond among 7,639 family nurse practitioner records in Illinois

Ruth M. Diamond, FNP-BC 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 updated2018 · 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.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Lynn Misch, N.P.Chicago, IL 606741285076794
  2. Shency Varughese, FNP-BCChicago, IL 606741598207375
  3. Keith Cermak, NPChicago, IL 606861609200971
  4. Agnieszka AugustynChicago, IL 606611043068786
  5. Kelly Beck, FNP-CChicago, IL 606611194658286
  6. Jordyn Beck, DNP, RN, CNLChicago, IL 606611669211504
  7. Evelyn Beltran SotoChicago, IL 606611194688127
  8. Marlene Bimm, FNP-BCChicago, IL 606611912843988

Common questions

What is Ruth M. Diamond, FNP-BC's NPI number?

Ruth M. Diamond, FNP-BC's National Provider Identifier (NPI) is 1013255975, issued on Jan 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Ruth M. Diamond, FNP-BC located?

The NPPES record lists a practice address at 2361 Paysphere Cir, Chicago, IL, 60674. Phone: (847) 746-4358. Providers update this record themselves, so call before visiting.

How can I verify Ruth M. Diamond, FNP-BC's license?

NPPES lists Illinois license number 209.010098, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Ruth M. Diamond, FNP-BC prescribe under Medicare Part D?

In 2024, Ruth M. Diamond, FNP-BC had 380 Medicare Part D claims for 95 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.