Dr. Mark S. Loewen, MD
- Medicare services, 2024
- 411
- Medicare patients, 2024
- 316
- Part D claims, 2024
- 159
- MIPS score, 2024
- 76
- Hospital affiliations
- 1
- Practice address
- 27 Park Street, Hyannis, MA 02601
- Practice phone
- Call (508) 771-1800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Loewen'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. Mark S. Loewen is a general surgeon in Hyannis, Massachusetts
Dr. Loewen practices at Cape Cod Hospital in Hyannis, Massachusetts, part of Cape Cod Healthcare.
Dr. Loewen's NPI, 1295747319, was assigned on August 13, 2006. Dr. Loewen graduated from Rush Medical College of Rush University in 2001. Dr. Loewen holds Massachusetts license 231062.
- NPI
- 1295747319NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224034202
- NPI enumeration date
- August 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 771-1800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark S. Loewen practices at Cape Cod Hospital in Hyannis, Massachusetts
Dr. Loewen's primary practice is Cape Cod Hospital, at 27 Park Street, Hyannis, MA 02601 in Barnstable County. The practice phone is (508) 771-1800.
- Cape Cod Hospital27 Park Street, Hyannis, MA 02601 · Barnstable CountyPhone(508) 771-1800
Source: Dmand AI Affiliation Data
Dr. Mark S. Loewen is affiliated with 3 sites of care and 1 medical group
Dr. Loewen's primary practice is Cape Cod Hospital in Hyannis, Massachusetts, part of Cape Cod Healthcare. The medical group on file is Medical Affiliates of Cape Cod (MACC). Dmand AI also links Dr. Loewen to 1 more group practice or clinic and 1 home health agency, 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. Mark S. Loewen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Loewen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cape Cod Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Cape Cod Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark S. Loewen is one of 732 general surgeons in Massachusetts
Surgery is Dr. Loewen's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Loewen is licensed in Massachusetts.
Specialties and state licenses
- Surgery, MassachusettsPrimary
General surgeons near Dr. Loewen
Counts of general surgeons 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. Mark S. Loewen billed Medicare for 411 services in 2024
CMS data shows 411 Medicare services from Dr. Loewen across 12 procedure codes in 2024, for 316 Medicare patients. Medicare paid $46,764 for them.
Dr. Loewen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3652024: 32312%
- Surgery
- 2023: 602024: 8847%
Where Dr. Loewen's Medicare services took place, 2024
- In an office20450%
- In a facility20750%
Dr. Loewen compared with the Massachusetts median for general surgeons, 2024
- Dr. Loewen
- Massachusetts median
- Medicare services
- 411vs 2002.1 times
- Medicare patients
- 316vs 1522.1 times
- Part D claims
- 95vs 224.3 times
Medians across 688 general surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Loewen'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. Loewen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Loewen and other general surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark S. Loewen treated 316 Medicare patients in 2024, average age 76
CMS counts 316 Medicare patients who saw Dr. Loewen in 2024. The largest group is 75 to 84, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Loewen's median patient age at 64, with 51% women.
Dr. Loewen's Medicare patients by age, 2024
Dr. Loewen's Medicare patients by sex, 2024
- Women15750%
- Men15950%
Chronic conditions among Dr. Loewen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Anxiety31%
- Ischemic heart disease30%
- Mood disorders28%
- Atrial fibrillation23%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Loewen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women51%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark S. Loewen wrote 159 Medicare Part D claims in 2024
In 2024, Dr. Loewen wrote 159 Medicare Part D claims for 110 patients. 98% of them were for generic drugs. CMS names the drug for 95 of them, across 5 drugs with 11 or more claims each, at $173 in total drug cost. In 2023, CMS named 70 claims across 3 drugs.
Dr. Loewen's Part D claims by kind of drug, 2024
- Generic156 claims98%
- Brand-name and other3 claims2%
Dr. Loewen'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. Loewen's Part D claims, 2024
- Opioids46%73 of 159 claims
- Antibiotics31%50 of 159 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: 702024: 9536%
Drugs named by CMS: 5 in 2024, 3 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. Mark S. Loewen scored 76 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 76 out of 100 for Dr. Loewen for performance year 2024, reported as part of a group. Dr. Loewen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 24 procedures of hernia repair - groin (open) by Dr. Loewen, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Loewen's MIPS scores, performance year 2024
- 76of 100Final score
- 56.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Loewen ranks in Medicare procedure volume
- Hernia repair - groin (open)
- 97th percentile24 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 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)
Skin biopsy: 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Mark S. Loewen received $921 in industry payments from 2016 to 2025
CMS Open Payments shows 33 general payments to Dr. Loewen from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Medtronic, Inc. paid the most, $162.
General payments to Dr. Loewen by program year, 2016 to 2025
General payments to Dr. Loewen by kind, 2016 to 2025
- Food and beverage$90398%
- Education$182%
Companies that paid Dr. Loewen 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. Mark S. Loewen graduated from Rush Medical College of Rush University
Dr. Loewen graduated from Rush Medical College of Rush University in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark S. Loewen'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)Doctors and Clinicians Utilization Data (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 |
| 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. Mark S. Loewen
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. Mark S. Loewen's NPI number?
Dr. Mark S. Loewen's NPI number is 1295747319. It was assigned on August 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark S. Loewen?
Dr. Mark S. Loewen is a general surgeon in Hyannis, Massachusetts. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mark S. Loewen practice?
Dr. Loewen practices at 27 Park Street, Hyannis, MA 02601. Dr. Loewen's primary practice is Cape Cod Hospital in Hyannis, Massachusetts, part of Cape Cod Healthcare. Dmand AI also links Dr. Loewen to 1 group practice or clinic and 1 home health agency.
What is Dr. Mark S. Loewen's office phone number?
The practice phone on file for Dr. Loewen is (508) 771-1800.
What is Dr. Mark S. Loewen's medical license number?
Dr. Loewen holds Massachusetts license 231062.
Which hospitals is Dr. Mark S. Loewen affiliated with?
Dr. Loewen practices at Cape Cod Hospital in Hyannis, Massachusetts.
What medical group is Dr. Mark S. Loewen part of?
Dr. Loewen is linked to Medical Affiliates of Cape Cod (MACC).
Does Dr. Mark S. Loewen accept Medicare?
Yes. CMS data shows Dr. Loewen billed Medicare for 411 services in 2024, and Dr. Loewen accepts Medicare assignment.
What is Dr. Mark S. Loewen's MIPS score?
Dr. Loewen's MIPS final score for performance year 2024 is 76 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark S. Loewen see?
CMS counts 316 Medicare patients who saw Dr. Loewen in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Mark S. Loewen bill to Medicare?
In 2024, Dr. Loewen's most billed Medicare services were office visit, new patient (99202), hospital inpatient care (99231) and office visit, established patient (99212).
Where did Dr. Mark S. Loewen go to medical school?
Dr. Loewen graduated from Rush Medical College of Rush University in 2001.
What drugs does Dr. Mark S. Loewen prescribe most?
In 2024 Medicare Part D data, Dr. Loewen's most prescribed drugs by claims were Oxycodone HCl, Hydrocodone-Acetaminophen and Tramadol HCl.
Has Dr. Mark S. Loewen received payments from drug or device companies?
CMS Open Payments shows $921 in general payments to Dr. Loewen from 18 companies from 2016 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Mark S. Loewen been practicing?
Dr. Loewen graduated from medical school in 2001, 25 years ago.
Selling to surgery practices?
See general surgeons in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card