Administration, TopicalCosmeticsGeorgia
Dr. Mary Jayne McIlwain, MD
NPI1811218548PAC ID1153547500
- Medicare services, 2024
- 147
- Medicare patients, 2024
- 266
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $30
- Practice address
- 555 North Duke Street, Lancaster, PA 17602
- Practice phone
- Call (717) 544-5511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. McIlwain's professional email, personal email and mobile number
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Dr. Mary Jayne McIlwain is an anesthesiologist in Lancaster, Pennsylvania
Dr. McIlwain practices at Lancaster General Hospital in Lancaster, Pennsylvania, part of University of Pennsylvania.
Dr. McIlwain's NPI, 1811218548, was assigned on June 16, 2010. Dr. McIlwain graduated from Emory University School of Medicine in 2010. Dr. McIlwain holds Pennsylvania license MD451688.
NPI and contact details
- NPI
- 1811218548NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153547500
- NPI enumeration date
- June 16, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (717) 544-5511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Jayne McIlwain practices at Lancaster General Hospital in Lancaster, Pennsylvania
Dr. McIlwain's primary practice is Lancaster General Hospital, at 555 North Duke Street, Lancaster, PA 17602 in Lancaster County. The practice phone is (717) 544-5511.
- Lancaster General Hospital555 North Duke Street, Lancaster, PA 17602 · Lancaster CountyPhone(717) 544-5511
Source: Dmand AI Affiliation Data
Dr. Mary Jayne McIlwain is affiliated with 2 sites of care and 1 medical group
Dr. McIlwain's primary practice is Lancaster General Hospital in Lancaster, Pennsylvania, part of University of Pennsylvania. The medical group on file is Penn Medicine Lancaster General Health. Dmand AI also links Dr. McIlwain to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary Jayne McIlwain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McIlwain practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lancaster General Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Mary Jayne McIlwain is one of 1,816 anesthesiologists in Pennsylvania
Anesthesiology is Dr. McIlwain's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. McIlwain's licenses on file in 2 states: Pennsylvania and North Carolina.
Specialties and state licenses
- Anesthesiology, PennsylvaniaPrimary
- Student in an organized health care education/training program, North Carolina
Anesthesiologists near Dr. McIlwain
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,816anesthesiologists in Pennsylvania76anesthesiologists in Lancaster36anesthesiologists at Lancaster General Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mary Jayne McIlwain billed Medicare for 147 services in 2024
CMS data shows 147 Medicare services from Dr. McIlwain across 5 procedure codes in 2024, for 266 Medicare patients. Medicare paid $7,991 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024147
Medicare patients266
Paid by Medicare$7,991
Procedure codes5
Dr. McIlwain's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1862024: 14721%
- Surgery
- 2023: 202024: 0100%
Dr. McIlwain compared with the Pennsylvania median for anesthesiologists, 2024
- Dr. McIlwain
- Pennsylvania median
- Medicare services
- 147vs 11528% above
- Medicare patients
- 266vs 19536% above
Medians across 1,825 anesthesiologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. McIlwain'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.
Need commercial claims for Dr. McIlwain?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McIlwain and other anesthesiologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Jayne McIlwain treated 266 Medicare patients in 2024, average age 75
CMS counts 266 Medicare patients who saw Dr. McIlwain in 2024. The largest group is 65 to 74, with 123 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McIlwain's median patient age at 65, with 58% women.
Medicare patients, 2024266
Average age75
Average risk score1.29
Dr. McIlwain's Medicare patients by age, 2024
Dr. McIlwain's Medicare patients by sex, 2024
- Women16161%
- Men10539%
Chronic conditions among Dr. McIlwain's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis49%
- Chronic kidney disease28%
- Diabetes28%
- Ischemic heart disease27%
- Atrial fibrillation26%
- Anxiety25%
Share of Medicare patients with each condition. A patient can have several.
Dr. McIlwain's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Mary Jayne McIlwain takes part in Medicare
Dr. McIlwain accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mary Jayne McIlwain has 1 publication on record
Dmand AI links 1 paper to Dr. McIlwain in 2011. Dr. McIlwain's most frequent co-author is Kristin Hendren Magee, MD.
Papers1
Dr. McIlwain's most frequent co-authors
Recent publications by Dr. McIlwain
See who Dr. McIlwain researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. McIlwain works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mary Jayne McIlwain received $30 in industry payments from 2018 to 2024
CMS Open Payments shows 2 general payments to Dr. McIlwain from 1 drug or device company from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $30.
General payments to Dr. McIlwain by program year, 2018 to 2024
Companies that paid Dr. McIlwain the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary Jayne McIlwain graduated from Emory University School of Medicine
Dr. McIlwain graduated from Emory University School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mary Jayne McIlwain's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mary Jayne McIlwain
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 Jayne McIlwain's NPI number?
Dr. Mary Jayne McIlwain's NPI number is 1811218548. It was assigned on June 16, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Jayne McIlwain?
Dr. Mary Jayne McIlwain is an anesthesiologist in Lancaster, Pennsylvania. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Mary Jayne McIlwain practice?
Dr. McIlwain practices at 555 North Duke Street, Lancaster, PA 17602. Dr. McIlwain's primary practice is Lancaster General Hospital in Lancaster, Pennsylvania, part of University of Pennsylvania. Dmand AI also links Dr. McIlwain to 1 group practice or clinic.
What is Dr. Mary Jayne McIlwain's office phone number?
The practice phone on file for Dr. McIlwain is (717) 544-5511.
What is Dr. Mary Jayne McIlwain's medical license number?
Dr. McIlwain holds Pennsylvania license MD451688, one of the licenses on file in 2 states.
Which states has Dr. Mary Jayne McIlwain been licensed in?
Dmand AI has state licenses on file for Dr. McIlwain in Pennsylvania and North Carolina.
Which hospitals is Dr. Mary Jayne McIlwain affiliated with?
Dr. McIlwain practices at Lancaster General Hospital in Lancaster, Pennsylvania.
What medical group is Dr. Mary Jayne McIlwain part of?
Dr. McIlwain is linked to Penn Medicine Lancaster General Health.
Does Dr. Mary Jayne McIlwain accept Medicare?
Yes. CMS data shows Dr. McIlwain billed Medicare for 147 services in 2024, and Dr. McIlwain accepts Medicare assignment.
How many Medicare patients does Dr. Mary Jayne McIlwain see?
CMS counts 266 Medicare patients who saw Dr. McIlwain in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Mary Jayne McIlwain bill to Medicare?
In 2024, Dr. McIlwain's most billed Medicare services were anesthesia (00142), anesthesia (00811) and anesthesia (00731).
Where did Dr. Mary Jayne McIlwain go to medical school?
Dr. McIlwain graduated from Emory University School of Medicine in 2010.
Has Dr. Mary Jayne McIlwain received payments from drug or device companies?
CMS Open Payments shows $30 in general payments to Dr. McIlwain from 1 company from 2018 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Mary Jayne McIlwain been practicing?
Dr. McIlwain graduated from medical school in 2010, 16 years ago.
Does Dr. Mary Jayne McIlwain do research?
Dmand AI links 1 publication to Dr. McIlwain.
Who does Dr. Mary Jayne McIlwain publish with?
Dr. McIlwain's most frequent co-authors are Kristin Hendren Magee, MD (1 shared paper).
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