Dr. Ellen R. Shammash, MD
- Medicare services, 2024
- 675
- Medicare patients, 2024
- 150
- Part D claims, 2024
- 1,076
- MIPS score, 2024
- 92
- Hospital affiliations
- 1
- Practice address
- 4010 West 65th Street, Edina, MN 55435
- Practice phone
- Call (651) 325-8486
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Crosstown Surgery Center
Surgery Center - Medicare-Certified · Edina, Minnesota
Find Dr. Shammash's professional email, personal email and mobile number
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Dr. Ellen R. Shammash is a rheumatologist in Minneapolis, Minnesota
Dr. Shammash practices at Crosstown Surgery Center in Edina, Minnesota.
Dr. Shammash's NPI, 1760455208, was assigned on February 7, 2006. Dr. Shammash graduated from New York University School of Medicine in 1988. Dr. Shammash holds Minnesota license 33822.
- NPI
- 1760455208NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032143722
- NPI enumeration date
- February 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (651) 325-8486
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ellen R. Shammash practices at Crosstown Surgery Center in Edina, Minnesota
Dr. Shammash's primary practice is Crosstown Surgery Center, at 4010 West 65th Street, Edina, MN 55435. The practice phone is (651) 325-8486.
- Crosstown Surgery Center4010 West 65th Street, Edina, MN 55435Phone(651) 325-8486
Source: Dmand AI Affiliation Data
Dr. Ellen R. Shammash is affiliated with 4 sites of care and 2 medical groups
Dr. Shammash's primary practice is Crosstown Surgery Center in Edina, Minnesota. Dr. Shammash is also affiliated with Amery Hospital & Clinic. The medical group on file is HealthPartners. Dmand AI also links Dr. Shammash to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ellen R. Shammash's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shammash practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Crosstown Surgery Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ellen R. Shammash is one of 136 rheumatologists in Minnesota
Rheumatology is Dr. Shammash's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dmand AI has Dr. Shammash's licenses on file in 2 states: Minnesota and Wisconsin.
Specialties and state licenses
- Rheumatology, MinnesotaPrimary
- Wisconsin license
Rheumatologists near Dr. Shammash
Counts of rheumatologists 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. Ellen R. Shammash billed Medicare for 675 services in 2024
CMS data shows 675 Medicare services from Dr. Shammash across 13 procedure codes in 2024, for 150 Medicare patients. Medicare paid $24,603 for them. Every service was in an office.
Dr. Shammash's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2582024: 33630%
- Office and hospital visits
- 2023: 1932024: 1759%
- Surgery
- 2023: 1612024: 6858%
- Tests and treatments
- 2023: 1082024: 5846%
- Other services
- 2023: 7002024: 3895%
Dr. Shammash compared with the Minnesota median for rheumatologists, 2024
- Dr. Shammash
- Minnesota median
- Medicare services
- 675vs 83119% below
- Medicare patients
- 150vs 17414% below
- Part D claims
- 886vs 71324% above
Medians across 142 rheumatologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Shammash'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ellen R. Shammash treated 150 Medicare patients in 2024, average age 72
CMS counts 150 Medicare patients who saw Dr. Shammash in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have arthritis, and 65% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shammash's median patient age at 63, with 76% women.
Dr. Shammash's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Shammash's Medicare patients by sex, 2024
- Women11577%
- Men3523%
Chronic conditions among Dr. Shammash's Medicare patients, 2024
- Arthritis75%
- High blood pressure65%
- High cholesterol56%
- Osteoporosis36%
- Mood disorders28%
- Depression25%
- Anxiety24%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shammash'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
- Women76%
- Men23%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ellen R. Shammash wrote 1,076 Medicare Part D claims in 2024
In 2024, Dr. Shammash wrote 1,076 Medicare Part D claims for 183 patients. 80% of them were for generic drugs. CMS names the drug for 886 of them, across 18 drugs with 11 or more claims each, at $975,494 in total drug cost. In 2023, CMS named 1,135 claims across 28 drugs.
Dr. Shammash's Part D claims by kind of drug, 2024
- Generic859 claims80%
- Brand-name and other217 claims20%
Dr. Shammash'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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1352024: 88622%
Drugs named by CMS: 18 in 2024, 28 in 2023.
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. Ellen R. Shammash scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Shammash for performance year 2024, reported as part of a group. Dr. Shammash accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shammash as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Shammash's MIPS scores, performance year 2024
- 92of 100Final score
- 95.1of 100Quality
- 40of 100Improvement Activities
- 82of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ellen R. Shammash graduated from New York University School of Medicine
Dr. Shammash graduated from New York University School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ellen R. Shammash'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) |
| 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)Clinician Public Reporting: Overall MIPS Performance (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. Ellen R. Shammash
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. Ellen R. Shammash's NPI number?
Dr. Ellen R. Shammash's NPI number is 1760455208. It was assigned on February 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ellen R. Shammash?
Dr. Ellen R. Shammash is a rheumatologist in Minneapolis, Minnesota. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Ellen R. Shammash practice?
Dr. Shammash practices at 4010 West 65th Street, Edina, MN 55435. Dr. Shammash's primary practice is Crosstown Surgery Center in Edina, Minnesota. Dmand AI also links Dr. Shammash to 2 group practices and clinics and 1 medical group.
What is Dr. Ellen R. Shammash's office phone number?
The practice phone on file for Dr. Shammash is (651) 325-8486.
What is Dr. Ellen R. Shammash's medical license number?
Dr. Shammash holds Minnesota license 33822, one of the licenses on file in 2 states.
Which states has Dr. Ellen R. Shammash been licensed in?
Dmand AI has state licenses on file for Dr. Shammash in Minnesota and Wisconsin.
Which hospitals is Dr. Ellen R. Shammash affiliated with?
Dr. Shammash is affiliated with Amery Hospital & Clinic.
What medical group is Dr. Ellen R. Shammash part of?
Dr. Shammash is linked to HealthPartners. Dmand AI links Dr. Shammash to 1 more medical group.
Does Dr. Ellen R. Shammash accept Medicare?
Yes. CMS data shows Dr. Shammash billed Medicare for 675 services in 2024, and Dr. Shammash accepts Medicare assignment.
Does Dr. Ellen R. Shammash offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shammash as offering telehealth services.
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What is Dr. Ellen R. Shammash's MIPS score?
Dr. Shammash's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Ellen R. Shammash see?
CMS counts 150 Medicare patients who saw Dr. Shammash in 2024, with an average age of 72.
What services does Dr. Ellen R. Shammash bill to Medicare?
In 2024, Dr. Shammash's most billed Medicare services were office visit, established patient (99214), lab and pathology test (85025) and lab and pathology test (82565).
Where did Dr. Ellen R. Shammash go to medical school?
Dr. Shammash graduated from New York University School of Medicine in 1988.
What drugs does Dr. Ellen R. Shammash prescribe most?
In 2024 Medicare Part D data, Dr. Shammash's most prescribed drugs by claims were Methotrexate, Prednisone and Hydroxychloroquine Sulfate.
How long has Dr. Ellen R. Shammash been practicing?
Dr. Shammash graduated from medical school in 1988, 38 years ago.
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