Dr. Karen A. Casper, MD
- Medicare services, 2023
- 12
- Part D claims, 2024
- 55
- Hospital affiliations
- 1
- Medical groups
- 3
- State license
- 1
- Practice address
- One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557
- Practice phone
- Call (508) 693-0410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Casper's professional email, personal email and mobile number
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Dr. Karen A. Casper is an emergency medicine physician in Oak Bluffs, Massachusetts
Dr. Casper practices at Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham.
Dr. Casper's NPI, 1962518738, was assigned on August 22, 2006. Dr. Casper graduated from University of Texas Medical Branch at Galveston in 1995. Dr. Casper holds Massachusetts license 159397.
- NPI
- 1962518738NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577720572
- NPI enumeration date
- August 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 693-0410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karen A. Casper practices at 2 locations in Oak Bluffs, Massachusetts
Dr. Casper's primary practice is Martha's Vineyard Hospital, at One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557 in Dukes County. The practice phone is (508) 693-0410. Dr. Casper also practices at Martha's Vineyard Hospital, 1 Hospital Way, Oak Bluffs, MA 02557.
- Martha's Vineyard HospitalPrimaryOne Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557 · Dukes CountyPhone(508) 693-0410
- Martha's Vineyard Hospital1 Hospital Way, Oak Bluffs, MA 02557 · Dukes CountyPhone(508) 693-0410
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Karen A. Casper is affiliated with 2 sites of care and 3 medical groups
Dr. Casper's primary practice is Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Casper to 2 more medical groups and 1 senior living community, each named with a free account. Dr. Casper's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karen A. Casper's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Casper practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martha's Vineyard Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen A. Casper is one of 1,483 emergency medicine physicians in Massachusetts
Emergency medicine is Dr. Casper's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Casper is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Casper
Counts of emergency medicine physicians 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. Karen A. Casper billed Medicare for 12 services in 2023
CMS data shows 12 Medicare services from Dr. Casper across 1 procedure code in 2023, all of them office visits. Medicare paid $909 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Casper compared with the Massachusetts median for emergency medicine physicians, 2023
- Dr. Casper
- Massachusetts median
- Medicare services
- 12vs 34196% below
- Part D claims
- 12vs 3667% below
Medians across 1,477 emergency medicine physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Casper'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Casper and other emergency medicine physicians in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen A. Casper's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Casper's median patient age at 73, with 50% women.
Dr. Casper's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Karen A. Casper wrote 55 Medicare Part D claims in 2024
In 2024, Dr. Casper wrote 55 Medicare Part D claims for 43 patients. 98% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $180 in total drug cost. In 2019, CMS named 12 claims across 1 drug.
Dr. Casper's Part D claims by kind of drug, 2024
- Generic54 claims98%
- Brand-name and other1 claims2%
Dr. Casper's most prescribed drugs by claims, 2022
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. Casper's Part D claims, 2024
- Antibiotics40%22 of 55 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, 2019 to 2022
- 2019
- 2022
- Claims for drugs CMS names
- 2019: 122022: 12No change
Drugs named by CMS: 1 in 2022, 1 in 2019.
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
How Dr. Karen A. Casper takes part in Medicare
Dr. Casper 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. Karen A. Casper graduated from University of Texas Medical Branch at Galveston
Dr. Casper graduated from University of Texas Medical Branch at Galveston in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen A. Casper'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 DataDmand AI Practice 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 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) |
| 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. Karen A. Casper
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. Karen A. Casper's NPI number?
Dr. Karen A. Casper's NPI number is 1962518738. It was assigned on August 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen A. Casper?
Dr. Karen A. Casper is an emergency medicine physician in Oak Bluffs, Massachusetts. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Karen A. Casper practice?
Dr. Casper practices at One Hospital Road, First Fl, Wing 5, PO Box 1477, Oak Bluffs, MA 02557. Dr. Casper also practices at 1 Hospital Way, Oak Bluffs, MA 02557. Dr. Casper's primary practice is Martha's Vineyard Hospital in Oak Bluffs, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Casper to 2 medical groups and 1 senior living community.
What is Dr. Karen A. Casper's office phone number?
The practice phone on file for Dr. Casper is (508) 693-0410.
What is Dr. Karen A. Casper's medical license number?
Dr. Casper holds Massachusetts license 159397.
Which hospitals is Dr. Karen A. Casper affiliated with?
Dr. Casper practices at Martha's Vineyard Hospital in Oak Bluffs, Massachusetts.
What medical group is Dr. Karen A. Casper part of?
Dr. Casper is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Casper to 2 more medical groups.
Does Dr. Karen A. Casper accept Medicare?
Yes. CMS data shows Dr. Casper billed Medicare for 12 services in 2023, and Dr. Casper accepts Medicare assignment.
What services does Dr. Karen A. Casper bill to Medicare?
In 2023, Dr. Casper's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Karen A. Casper go to medical school?
Dr. Casper graduated from University of Texas Medical Branch at Galveston in 1995.
What drugs does Dr. Karen A. Casper prescribe most?
In 2022 Medicare Part D data, Dr. Casper's most prescribed drugs by claims were Doxycycline Monohydrate.
How long has Dr. Karen A. Casper been practicing?
Dr. Casper graduated from medical school in 1995, 31 years ago.
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