Dr. Riley Perry Lloyd, MD

  • Oak Park, IL
  • OB-GYN
NPI1073628285PAC ID1951580901
Medicare services, 2024
142
Medicare patients, 2024
89
Part D claims, 2024
260
Hospital affiliations
3
Industry payments
$143,100
Practice address
520 S Maple Ave, Oak Park, IL 60304
Practice phone
Call (708) 383-9300
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Rush Oak Park Hospital

Hospital · Oak Park, Illinois

See all 5 affiliations

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Dr. Riley Perry Lloyd is an OB-GYN in Oak Park, Illinois

Dr. Lloyd practices at Rush Oak Park Hospital in Oak Park, Illinois, part of Rush System for Health.

Dr. Lloyd's NPI, 1073628285, was assigned on August 20, 2006. Dr. Lloyd graduated from Meharry Medical College School of Medicine in 1984. Dr. Lloyd holds Illinois license 036-092020.

NPI and contact details
Medicare PAC ID
1951580901
NPI enumeration date
August 20, 2006
NPI status
Active
Practice phone
(708) 383-9300
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Riley Perry Lloyd practices at Rush Oak Park Hospital in Oak Park, Illinois

Dr. Lloyd's primary practice is Rush Oak Park Hospital, at 520 S Maple Ave, Oak Park, IL 60304 in Cook County. The practice phone is (708) 383-9300.

Source: Dmand AI Affiliation Data

Dr. Riley Perry Lloyd is affiliated with 5 sites of care

Dr. Lloyd's primary practice is Rush Oak Park Hospital in Oak Park, Illinois, part of Rush System for Health. Dr. Lloyd is also affiliated with Evanston Hospital. Dmand AI also links Dr. Lloyd to 1 more hospital and 2 physician offices, each named with a free account.

See all 5 affiliations for Dr. Lloyd

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Riley Perry Lloyd's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lloyd practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Rush Oak Park HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Riley Perry Lloyd is one of 1,665 OB-GYNs in Illinois

Obstetrics and gynecology is Dr. Lloyd's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Lloyd is licensed in Illinois.

Specialties and state licenses

  • Obstetrics and gynecology, IllinoisPrimaryLicense 036-092020 · taxonomy 207V00000X

OB-GYNs near Dr. Lloyd

Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.

1,665OB-GYNs in Illinois
7OB-GYNs in Oak Park

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Riley Perry Lloyd billed Medicare for 142 services in 2024

CMS data shows 142 Medicare services from Dr. Lloyd across 2 procedure codes in 2024, for 89 Medicare patients. Medicare paid $9,318 for them. Every service was in an office.

Medicare services, 2024142
Medicare patients89
Paid by Medicare$9,318
Procedure codes2

Dr. Lloyd's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 1232024: 1252%
Office and hospital visits
2023: 172024: 17No change
Other services
2023: 382024: 0100%

Dr. Lloyd compared with the Illinois median for OB-GYNs, 2024

  • Dr. Lloyd
  • Illinois median
Medicare services
142vs 483.0 times
Medicare patients
89vs 442.0 times
Part D claims
181vs 286.5 times

Medians across 1,360 OB-GYNs in Illinois with Dmand AI profiles that report each measure.

Dr. Lloyd's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Lloyd

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Riley Perry Lloyd treated 89 Medicare patients in 2024, average age 71

CMS counts 89 Medicare patients who saw Dr. Lloyd in 2024. The largest group is 65 to 74, with 64 patients. 57% of them have high cholesterol, and 36% have high blood pressure. Their average risk score is 0.61, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lloyd's median patient age at 60, with 88% women.

Medicare patients, 202489
Average age71
Average risk score0.61

Dr. Lloyd's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Lloyd's Medicare patients, 2024

  1. High cholesterol57%
  2. High blood pressure36%
  3. Arthritis34%
  4. Anxiety24%
  5. Mood disorders21%
  6. Depression19%
  7. Osteoporosis16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Lloyd's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women88%
  • Men11%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Riley Perry Lloyd wrote 260 Medicare Part D claims in 2024

In 2024, Dr. Lloyd wrote 260 Medicare Part D claims for 87 patients. 96% of them were for generic drugs. CMS names the drug for 181 of them, across 3 drugs with 11 or more claims each, at $8,120 in total drug cost. In 2023, CMS named 165 claims across 4 drugs.

Part D claims, 2024260
Drugs named by CMS3
Total drug cost$8,120
Part D patients87

Dr. Lloyd's Part D claims by kind of drug, 2024

  • Generic249 claims96%
  • Brand-name and other11 claims4%

Dr. Lloyd's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Lloyd's Part D claims, 2024

  • Antibiotics7%17 of 260 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1652024: 18110%

Drugs named by CMS: 3 in 2024, 4 in 2023.

See all prescribing by Dr. Lloyd

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Riley Perry Lloyd received $143,100 in industry payments from 2016 to 2025

CMS Open Payments shows 198 general payments to Dr. Lloyd from 16 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 46% of the total. Applied Medical Resources Corporation paid the most, $136,786.

General payments to Dr. Lloyd by program year, 2016 to 2025

General payments to Dr. Lloyd by kind, 2016 to 2025

$143.1Kin total
  • Speaker and faculty fees$65,37346%
  • Honoraria$54,50038%
  • Travel and lodging$18,99813%
  • Food and beverage$3,4542%
  • Consulting fees$7751%

Companies that paid Dr. Lloyd the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lloyd

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Riley Perry Lloyd graduated from Meharry Medical College School of Medicine

Dr. Lloyd graduated from Meharry Medical College School of Medicine in 1984.

  1. Medical schoolMeharry Medical College School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Riley Perry Lloyd's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Riley Perry Lloyd

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Riley Perry Lloyd's NPI number?

Dr. Riley Perry Lloyd's NPI number is 1073628285. It was assigned on August 20, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Riley Perry Lloyd?

Dr. Riley Perry Lloyd is an OB-GYN in Oak Park, Illinois. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Riley Perry Lloyd practice?

Dr. Lloyd practices at 520 S Maple Ave, Oak Park, IL 60304. Dr. Lloyd's primary practice is Rush Oak Park Hospital in Oak Park, Illinois, part of Rush System for Health. Dmand AI also links Dr. Lloyd to 1 hospital and 2 physician offices.

What is Dr. Riley Perry Lloyd's office phone number?

The practice phone on file for Dr. Lloyd is (708) 383-9300.

What is Dr. Riley Perry Lloyd's medical license number?

Dr. Lloyd holds Illinois license 036-092020.

Which hospitals is Dr. Riley Perry Lloyd affiliated with?

Dr. Lloyd practices at Rush Oak Park Hospital in Oak Park, Illinois. Dr. Lloyd is also affiliated with Evanston Hospital. Dmand AI links Dr. Lloyd to 1 more hospital.

Does Dr. Riley Perry Lloyd accept Medicare?

Yes. CMS data shows Dr. Lloyd billed Medicare for 142 services in 2024.

How many Medicare patients does Dr. Riley Perry Lloyd see?

CMS counts 89 Medicare patients who saw Dr. Lloyd in 2024, with an average age of 71.

What services does Dr. Riley Perry Lloyd bill to Medicare?

In 2024, Dr. Lloyd's most billed Medicare services were surgery: skin and soft tissue (11980) and office visit, established patient (99213).

Where did Dr. Riley Perry Lloyd go to medical school?

Dr. Lloyd graduated from Meharry Medical College School of Medicine in 1984.

Show 3 more questionsShow fewer questions

What drugs does Dr. Riley Perry Lloyd prescribe most?

In 2024 Medicare Part D data, Dr. Lloyd's most prescribed drugs by claims were Progesterone, Cyanocobalamin Injection and Anastrozole.

Has Dr. Riley Perry Lloyd received payments from drug or device companies?

CMS Open Payments shows $143,100 in general payments to Dr. Lloyd from 16 companies from 2016 to 2025. The largest total came from Applied Medical Resources Corporation.

How long has Dr. Riley Perry Lloyd been practicing?

Dr. Lloyd graduated from medical school in 1984, 42 years ago.

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