Dr. Mary Margaret Ewing, MBA, MD
- Medicare services, 2021
- 50
- Part D claims, 2024
- 24
- Industry payments
- $1,232
- Affiliated sites
- 2
- Medical groups
- 3
- Practice address
- 41750 Rancho Las Palmas Dr, Rancho Mirage, CA 92270
- Practice phone
- Call (855) 940-4867
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
TMS Neurohealth West Professional Medical Corporation
Rancho Mirage, California
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 Margaret Ewing is a psychiatrist in Rancho Mirage, California
Dr. Ewing practices at TMS Neurohealth West Professional Medical Corporation in Rancho Mirage, California.
Dr. Ewing's NPI, 1073652004, was assigned on February 6, 2007. Dr. Ewing graduated from George Washington University School of Medicine and Health Sciences in 2006. Dr. Ewing holds California license A112699.
- NPI
- 1073652004NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739375346
- NPI enumeration date
- February 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (855) 940-4867
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Margaret Ewing practices at TMS Neurohealth West Professional Medical Corporation in Rancho Mirage, California
Dr. Ewing's primary practice is TMS Neurohealth West Professional Medical Corporation, at 41750 Rancho Las Palmas Dr, Rancho Mirage, CA 92270 in Riverside County. The practice phone is (855) 940-4867.
- TMS Neurohealth West Professional Medical Corporation41750 Rancho Las Palmas Dr, Rancho Mirage, CA 92270 · Riverside CountyPhone(855) 940-4867
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mary Margaret Ewing is affiliated with 3 sites of care and 3 medical groups
Dr. Ewing's primary practice is TMS Neurohealth West Professional Medical Corporation in Rancho Mirage, California. The medical group on file is Greenbrook Mental Wellness Center Agoura Hills. Dmand AI also links Dr. Ewing to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mary Margaret Ewing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ewing practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| TMS Neurohealth West Professional Medical Corporation | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary Margaret Ewing is one of 6,803 psychiatrists in California
Psychiatry is Dr. Ewing's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Ewing is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Ewing's licenses on file in 7 states: California, Colorado, Florida, Virginia, Maryland, Kentucky and New Mexico.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Colorado license
- Florida license
- Virginia license
- Maryland license
- Kentucky license
- New Mexico license
Psychiatrists near Dr. Ewing
Counts of psychiatrists 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 Margaret Ewing billed Medicare for 50 services in 2021
CMS data shows 50 Medicare services from Dr. Ewing across 1 procedure code in 2021, all of them office visits. Medicare paid $3,770 for them. Every service was in an office.
Dr. Ewing's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 2222021: 5077%
Dr. Ewing compared with the California median for psychiatrists, 2021
- Dr. Ewing
- California median
- Medicare services
- 50vs 11958% below
- Part D claims
- 24vs 14483% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Ewing's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ewing and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Margaret Ewing's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Ewing's median patient age at 44, with 51% women.
Dr. Ewing's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women51%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Mary Margaret Ewing wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Ewing wrote 24 Medicare Part D claims. 0% of them were for generic drugs. They cover 1 drug, with $38,684 in total drug cost. In 2021, CMS named 756 claims across 29 drugs.
Dr. Ewing'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.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 7562024: 2497%
Drugs named by CMS: 1 in 2024, 29 in 2021.
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 Margaret Ewing offers telehealth to Medicare patients
Dr. Ewing accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ewing as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mary Margaret Ewing received $1,232 in industry payments from 2016 to 2025
CMS Open Payments shows 42 general payments to Dr. Ewing from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Genentech, Inc. paid the most, $319.
General payments to Dr. Ewing by program year, 2016 to 2025
General payments to Dr. Ewing by kind, 2016 to 2025
- Food and beverage$1,18596%
- Education$474%
Companies that paid Dr. Ewing the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mary Margaret Ewing graduated from George Washington University School of Medicine and Health Sciences
Dr. Ewing graduated from George Washington University School of Medicine and Health Sciences in 2006.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Mary Margaret Ewing accepts plans from 10 insurance carriers
Dr. Ewing is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Cigna
- HCSC
- Humana
- Regence Health Plans
- +2 more carriersWith a free account
Plan types Dr. Ewing accepts, by number of carriers
- Medicare10
- PPO8
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mary Margaret 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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Margaret 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 Margaret Ewing's NPI number?
Dr. Mary Margaret Ewing's NPI number is 1073652004. It was assigned on February 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Margaret Ewing?
Dr. Mary Margaret Ewing is a psychiatrist in Rancho Mirage, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mary Margaret Ewing practice?
Dr. Ewing practices at 41750 Rancho Las Palmas Dr, Rancho Mirage, CA 92270. Dr. Ewing's primary practice is TMS Neurohealth West Professional Medical Corporation in Rancho Mirage, California. Dmand AI also links Dr. Ewing to 2 group practices and clinics and 2 medical groups.
What is Dr. Mary Margaret Ewing's office phone number?
The practice phone on file for Dr. Ewing is (855) 940-4867.
What is Dr. Mary Margaret Ewing's medical license number?
Dr. Ewing holds California license A112699, one of the licenses on file in 7 states.
Which states has Dr. Mary Margaret Ewing been licensed in?
Dmand AI has state licenses on file for Dr. Ewing in California (2010 to 2026), Colorado (2016 to 2027), Florida (2019 to 2027), Virginia (2010 to 2026), Maryland (2010 to 2025), Kentucky (2017 to 2018) and New Mexico (2006 to 2011).
What medical group is Dr. Mary Margaret Ewing part of?
Dr. Ewing is linked to Greenbrook Mental Wellness Center Agoura Hills. Dmand AI links Dr. Ewing to 2 more medical groups.
Does Dr. Mary Margaret Ewing accept Medicare?
Yes. CMS data shows Dr. Ewing billed Medicare for 50 services in 2021, and Dr. Ewing accepts Medicare assignment.
Does Dr. Mary Margaret Ewing offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ewing as offering telehealth services.
Is Dr. Mary Margaret Ewing board certified?
Yes. Dr. Ewing is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Show 6 more questionsShow fewer questions
What services does Dr. Mary Margaret Ewing bill to Medicare?
In 2021, Dr. Ewing's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Mary Margaret Ewing go to medical school?
Dr. Ewing graduated from George Washington University School of Medicine and Health Sciences in 2006.
What drugs does Dr. Mary Margaret Ewing prescribe most?
In 2024 Medicare Part D data, Dr. Ewing's most prescribed drugs by claims were Spravato.
Has Dr. Mary Margaret Ewing received payments from drug or device companies?
CMS Open Payments shows $1,232 in general payments to Dr. Ewing from 13 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Mary Margaret Ewing been practicing?
Dr. Ewing graduated from medical school in 2006, 20 years ago.
What insurance does Dr. Mary Margaret Ewing accept?
Dr. Ewing is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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