Dr. Mary Ling, MD

  • Winfield, IL
  • Orthopaedic hand surgery physician
NPI1891784005PAC ID0042116428
Medicare services, 2024
983
Medicare patients, 2024
270
Part D claims, 2024
62
MIPS score, 2024
96
Hospital affiliations
2
Practice address
25 North Winfield Road, Winfield, IL 60190
Practice phone
Call (630) 682-1600
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Northwestern Medicine Central DuPage Hospital

Hospital · Winfield, Illinois

See all 6 affiliations

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Dr. Mary Ling is an orthopaedic hand surgery physician in Winfield, Illinois

Dr. Ling practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.

Dr. Ling's NPI, 1891784005, was assigned on October 19, 2005. Dr. Ling graduated from Northwestern University Feinberg Medical School in 1993. Dr. Ling holds Illinois license 036100335.

NPI and contact details
Medicare PAC ID
0042116428
NPI enumeration date
October 19, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(630) 682-1600
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
59
Medical school graduation
1993

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mary Ling practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois

Dr. Ling's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.

Source: Dmand AI Affiliation Data

Dr. Mary Ling is affiliated with 5 sites of care and 1 medical group

Dr. Ling's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dr. Ling is also affiliated with Northwestern Medicine Delnor Hospital. The medical group on file is Northwestern Medicine Regional Medical Group. Dmand AI also links Dr. Ling to 1 more breast imaging center, 1 clinical lab and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. Ling

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

Dmand AI tracks the EHR system at Dr. Mary Ling's practice

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

EHR by site
SiteEHR vendor and product
Northwestern Medicine Central DuPage HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mary Ling is one of 111 orthopaedic hand surgery physicians in Illinois

Hand surgery is Dr. Ling's primary specialty in the NPI Registry, under taxonomy code 207XS0106X. Dr. Ling is licensed in Illinois.

Specialties and state licenses

  • Orthopaedic hand surgery, IllinoisPrimaryLicense 036100335 · taxonomy 207XS0106X

Orthopaedic hand surgery physicians near Dr. Ling

Counts of orthopaedic hand surgery physicians with a Dmand AI profile, by place and practice. Each opens the list.

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

Dr. Mary Ling billed Medicare for 983 services in 2024

CMS data shows 983 Medicare services from Dr. Ling across 17 procedure codes in 2024, for 270 Medicare patients. Medicare paid $52,035 for them.

Medicare services, 2024983
Medicare patients270
Paid by Medicare$52,035
Procedure codes17

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

  • 2023
  • 2024
Office and hospital visits
2023: 4272024: 4006%
Imaging
2023: 2222024: 2251%
Drugs given in the office
2023: 2432024: 18823%
Surgery
2023: 1632024: 1489%
Other services
2023: 292024: 2224%

Where Dr. Ling's Medicare services took place, 2024

  • In an office94796%
  • In a facility364%

Dr. Ling compared with the Illinois median for orthopaedic hand surgery physicians, 2024

  • Dr. Ling
  • Illinois median
Medicare services
983vs 1,75644% below
Medicare patients
270vs 34923% below
Part D claims
35vs 7151% below

Medians across 108 orthopaedic hand surgery physicians in Illinois with Dmand AI profiles that report each measure.

Dr. Ling'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. Ling

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

Dr. Mary Ling treated 270 Medicare patients in 2024, average age 74

CMS counts 270 Medicare patients who saw Dr. Ling in 2024. The largest group is 65 to 74, with 146 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Ling's median patient age at 63, with 61% women.

Medicare patients, 2024270
Average age74
Average risk score1.07
Also on Medicaid9%

Dr. Ling's Medicare patients by age, 2024

Dr. Ling's Medicare patients by sex, 2024

  • Women17163%
  • Men9937%

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

  1. High cholesterol75%
  2. High blood pressure68%
  3. Arthritis62%
  4. Anxiety29%
  5. Mood disorders28%
  6. Diabetes26%
  7. Ischemic heart disease26%
  8. Depression23%

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

Dr. Ling's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women61%
  • Men38%

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

Dr. Mary Ling wrote 62 Medicare Part D claims in 2024

In 2024, Dr. Ling wrote 62 Medicare Part D claims for 51 patients. 100% of them were for generic drugs. CMS names the drug for 35 of them, across 2 drugs with 11 or more claims each, at $140 in total drug cost. In 2023, CMS named 36 claims across 3 drugs.

Part D claims, 202462
Drugs named by CMS2
Total drug cost$140
Part D patients51

Dr. Ling'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. Ling's Part D claims, 2024

  • Opioids42%26 of 62 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: 362024: 353%

Drugs named by CMS: 2 in 2024, 3 in 2023.

See all prescribing by Dr. Ling

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

Dr. Mary Ling scored 96 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Ling for performance year 2024, reported through an alternative payment model (APM). Dr. Ling accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Ling's MIPS scores, performance year 2024

  • 96of 100Final score
  • 88.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Mary Ling received $4,046 in industry payments from 2017 to 2023

CMS Open Payments shows 15 general payments to Dr. Ling from 4 drug and device companies from 2017 to 2023. Travel and lodging make up the largest share, 75% of the total. Acumed LLC paid the most, $3,946.

General payments to Dr. Ling by program year, 2017 to 2023

General payments to Dr. Ling by kind, 2017 to 2023

$4Kin total
  • Travel and lodging$3,01675%
  • Food and beverage$1,03025%

Companies that paid Dr. Ling the most, 2017 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Ling

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

Dr. Mary Ling graduated from Northwestern University Feinberg Medical School

Dr. Ling graduated from Northwestern University Feinberg Medical School in 1993.

  1. Medical schoolNorthwestern University Feinberg Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Mary Ling'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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Mary Ling

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. Mary Ling's NPI number?

Dr. Mary Ling's NPI number is 1891784005. It was assigned on October 19, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary Ling?

Dr. Mary Ling is an orthopaedic hand surgery physician in Winfield, Illinois. The primary specialty in the NPI Registry is Orthopaedic Hand Surgery Physician (taxonomy code 207XS0106X).

Where does Dr. Mary Ling practice?

Dr. Ling practices at 25 North Winfield Road, Winfield, IL 60190. Dr. Ling's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Ling to 1 breast imaging center, 1 clinical lab and 1 group practice or clinic.

What is Dr. Mary Ling's office phone number?

The practice phone on file for Dr. Ling is (630) 682-1600.

What is Dr. Mary Ling's medical license number?

Dr. Ling holds Illinois license 036100335.

Which hospitals is Dr. Mary Ling affiliated with?

Dr. Ling practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois. Dr. Ling is also affiliated with Northwestern Medicine Delnor Hospital.

What medical group is Dr. Mary Ling part of?

Dr. Ling is linked to Northwestern Medicine Regional Medical Group.

Does Dr. Mary Ling accept Medicare?

Yes. CMS data shows Dr. Ling billed Medicare for 983 services in 2024, and Dr. Ling accepts Medicare assignment.

What is Dr. Mary Ling's MIPS score?

Dr. Ling's MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Mary Ling see?

CMS counts 270 Medicare patients who saw Dr. Ling in 2024, with an average age of 74.

Show 5 more questionsShow fewer questions

What services does Dr. Mary Ling bill to Medicare?

In 2024, Dr. Ling's most billed Medicare services were injected or infused drug (J0702), office visit, established patient (99213) and office visit, new patient (99202).

Where did Dr. Mary Ling go to medical school?

Dr. Ling graduated from Northwestern University Feinberg Medical School in 1993.

What drugs does Dr. Mary Ling prescribe most?

In 2024 Medicare Part D data, Dr. Ling's most prescribed drugs by claims were Methylprednisolone and Tramadol HCl.

Has Dr. Mary Ling received payments from drug or device companies?

CMS Open Payments shows $4,046 in general payments to Dr. Ling from 4 companies from 2017 to 2023. The largest total came from Acumed LLC.

How long has Dr. Mary Ling been practicing?

Dr. Ling graduated from medical school in 1993, 33 years ago.

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