Dr. Mary Kay Ewing, MD
- Medicare services, 2023
- 13
- Medicare patients, 2024
- 22
- MIPS score, 2024
- 83
- Industry payments
- $25
- Affiliated sites
- 1
- Practice address
- 900 Canton Ave, Baltimore, MD 21229
- Practice phone
- Call (410) 368-3045
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave)
Surgical practice · Baltimore, Maryland
Find Dr. Ewing's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mary Kay Ewing is an anesthesiologist in Hanover, Pennsylvania
Dr. Ewing practices at Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave) in Baltimore, Maryland.
Dr. Ewing's NPI, 1609873348, was assigned on July 7, 2005. Dr. Ewing holds Maryland license D0041059.
- NPI
- 1609873348NPI Registry (opens in a new tab)
- NPI enumeration date
- July 7, 2005
- NPI status
- Active
- Practice phone
- (410) 368-3045
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Kay Ewing practices in Baltimore and Hanover
Dr. Ewing's primary practice is Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave), at 900 Canton Ave, Baltimore, MD 21229. The practice phone is (410) 368-3045. The NPI Registry lists Dr. Ewing's practice address as 300 Highland Ave, Hanover, PA 17331.
- Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave)Primary900 Canton Ave, Baltimore, MD 21229Phone(410) 368-3045
- NPI Registry address300 Highland Ave, Hanover, PA 17331 · York CountyPhone(410) 368-3045
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Mary Kay Ewing is affiliated with 1 site of care and 1 medical group
Dr. Ewing's primary practice is Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave) in Baltimore, Maryland. The medical group on file is Johns Hopkins University.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Mary Kay Ewing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ewing practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary Kay Ewing is one of 1,816 anesthesiologists in Pennsylvania
Anesthesiology is Dr. Ewing's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Ewing is licensed in Maryland.
Specialties and state licenses
- Anesthesiology, MarylandPrimary
Anesthesiologists near Dr. Ewing
Counts of anesthesiologists 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 Kay Ewing billed Medicare for 13 services in 2023
CMS data shows 13 Medicare services from Dr. Ewing across 1 procedure code in 2023, for 22 Medicare patients. Medicare paid $1,895 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ewing's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Anesthesia
- 2022: 582023: 1378%
Dr. Ewing compared with the Pennsylvania median for anesthesiologists, 2023
- Dr. Ewing
- Pennsylvania median
- Medicare services
- 13vs 11589% below
- Medicare patients
- 22vs 19589% below
Medians across 1,825 anesthesiologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Ewing's most billed Medicare procedure codes, 2023
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. Ewing?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ewing and other anesthesiologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Kay Ewing treated 22 Medicare patients in 2024, average age 67
CMS counts 22 Medicare patients who saw Dr. Ewing in 2024. The largest group is 65 to 74, with 11 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 50% are also on Medicaid. Their average risk score is 3.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Dr. Ewing's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Ewing's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis55%
- Chronic kidney disease50%
- Diabetes50%
- Ischemic heart disease50%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary Kay Ewing scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Ewing for performance year 2024, reported as part of a group.
Dr. Ewing's MIPS scores, performance year 2024
- 83of 100Final score
- 73.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mary Kay Ewing received $25 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Ewing from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $25.
Companies that paid Dr. Ewing the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mary Kay Ewing'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 | Medicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Kay Ewing
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 Kay Ewing's NPI number?
Dr. Mary Kay Ewing's NPI number is 1609873348. It was assigned on July 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Kay Ewing?
Dr. Mary Kay Ewing is an anesthesiologist in Hanover, Pennsylvania. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Mary Kay Ewing practice?
Dr. Ewing practices at 900 Canton Ave, Baltimore, MD 21229. Dr. Ewing also practices at 300 Highland Ave, Hanover, PA 17331. Dr. Ewing's primary practice is Johns Hopkins University - Anesthesia & Pain - Baltimore (Canton Ave) in Baltimore, Maryland.
What is Dr. Mary Kay Ewing's office phone number?
The practice phone on file for Dr. Ewing is (410) 368-3045.
What is Dr. Mary Kay Ewing's medical license number?
Dr. Ewing holds Maryland license D0041059.
What medical group is Dr. Mary Kay Ewing part of?
Dr. Ewing is linked to Johns Hopkins University.
Does Dr. Mary Kay Ewing accept Medicare?
Yes. CMS data shows Dr. Ewing billed Medicare for 13 services in 2023.
What is Dr. Mary Kay Ewing's MIPS score?
Dr. Ewing's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mary Kay Ewing see?
CMS counts 22 Medicare patients who saw Dr. Ewing in 2024, with an average age of 67.
What services does Dr. Mary Kay Ewing bill to Medicare?
In 2023, Dr. Ewing's most billed Medicare services were anesthesia (01922).
Has Dr. Mary Kay Ewing received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Ewing from 1 company from 2016 to 2016. The largest total came from Mallinckrodt LLC.
How long has Dr. Mary Kay Ewing been practicing?
Dr. Ewing's NPI was assigned in 2005.
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