Dr. Benjamin M. Keyser, DO
- Medicare services, 2024
- 1,489
- Medicare patients, 2024
- 811
- Part D claims, 2024
- 501
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- One Hospital Drive, Lewisburg, PA 17837
- Practice phone
- Call (570) 522-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Keyser'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. Benjamin M. Keyser is a vascular surgeon in Lewisburg, Pennsylvania
Dr. Keyser practices at WellSpan Evangelical Community Hospital in Lewisburg, Pennsylvania, part of WellSpan Health.
Dr. Keyser's NPI, 1568773232, was assigned on June 28, 2010. Dr. Keyser graduated from Philadelphia College of Osteopathic Medicine in 2010. Dr. Keyser holds Pennsylvania license OS018770.
- NPI
- 1568773232NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729382825
- NPI enumeration date
- June 28, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (570) 522-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Benjamin M. Keyser practices at 2 locations in Lewisburg, Pennsylvania
Dr. Keyser's primary practice is WellSpan Evangelical Community Hospital, at One Hospital Drive, Lewisburg, PA 17837 in Union County. The practice phone is (570) 522-2000. Dr. Keyser also practices at Evangelical Community Hospital, 1 Hospital Dr, Lewisburg, PA 17837.
- WellSpan Evangelical Community HospitalPrimaryOne Hospital Drive, Lewisburg, PA 17837 · Union CountyPhone(570) 522-2000
- Evangelical Community Hospital1 Hospital Dr, Lewisburg, PA 17837 · Union CountyPhone(570) 522-2000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Benjamin M. Keyser is affiliated with 5 sites of care and 2 medical groups
Dr. Keyser's primary practice is WellSpan Evangelical Community Hospital in Lewisburg, Pennsylvania, part of WellSpan Health. Dr. Keyser is also affiliated with Geisinger Medical Center. The medical group on file is WellSpan Digestive Health. Dmand AI also links Dr. Keyser to 2 more group practices and clinics, 1 clinical lab 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. Benjamin M. Keyser's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keyser practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| WellSpan Evangelical Community Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Benjamin M. Keyser is one of 220 vascular surgeons in Pennsylvania
Vascular surgery is Dr. Keyser's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Keyser is licensed in Pennsylvania.
Specialties and state licenses
- Vascular surgery, PennsylvaniaPrimary
Vascular surgeons near Dr. Keyser
Counts of vascular 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. Benjamin M. Keyser billed Medicare for 1,489 services in 2024
CMS data shows 1,489 Medicare services from Dr. Keyser across 16 procedure codes in 2024, for 811 Medicare patients. Medicare paid $43,234 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Keyser's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8982024: 1,08220%
- Office and hospital visits
- 2023: 4072024: 3855%
- Imaging
- 2023: 02024: 22
Dr. Keyser compared with the Pennsylvania median for vascular surgeons, 2024
- Dr. Keyser
- Pennsylvania median
- Medicare services
- 1,489vs 6222.4 times
- Medicare patients
- 811vs 43288% above
- Part D claims
- 419vs 676.3 times
Medians across 216 vascular surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Keyser'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. Keyser?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Keyser and other vascular surgeons in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Benjamin M. Keyser treated 811 Medicare patients in 2024, average age 76
CMS counts 811 Medicare patients who saw Dr. Keyser in 2024. The largest group is 65 to 74, with 327 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Keyser's median patient age at 74, with 45% women.
Dr. Keyser's Medicare patients by age, 2024
Dr. Keyser's Medicare patients by sex, 2024
- Women41351%
- Men39849%
Chronic conditions among Dr. Keyser's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease43%
- Diabetes40%
- Chronic kidney disease32%
- Anxiety27%
- Heart failure27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Keyser's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Benjamin M. Keyser wrote 501 Medicare Part D claims in 2024
In 2024, Dr. Keyser wrote 501 Medicare Part D claims for 144 patients. 87% of them were for generic drugs. CMS names the drug for 419 of them, across 9 drugs with 11 or more claims each, at $39,235 in total drug cost. In 2023, CMS named 336 claims across 5 drugs.
Dr. Keyser's Part D claims by kind of drug, 2024
- Generic434 claims87%
- Brand-name67 claims13%
Dr. Keyser'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. Keyser's Part D claims, 2024
- Antibiotics15%77 of 501 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: 3362024: 41925%
Drugs named by CMS: 9 in 2024, 5 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. Benjamin M. Keyser ranks in the 87th percentile for removal of tissue in Medicare
Dr. Keyser accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 116 procedures of removal of tissue by Dr. Keyser, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Keyser ranks in Medicare procedure volume
- Removal of tissue
- 87th percentile116 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Benjamin M. Keyser has 1 publication on record
Dmand AI links 1 paper to Dr. Keyser in 2017. Dr. Keyser's most frequent co-authors are Benjamin Theo John Chandler, MD, James R. Elmore, MD and Evan Joseph Ryer, MD.
Dr. Keyser's most frequent co-authors
- Benjamin Theo John Chandler, MD1 shared paper
- James R. Elmore, MD1 shared paper
- Evan Joseph Ryer, MD1 shared paper
Recent publications by Dr. Keyser
See who Dr. Keyser researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Keyser works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Benjamin M. Keyser received $4,859 in industry payments from 2016 to 2025
CMS Open Payments shows 92 general payments to Dr. Keyser from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 57% of the total. W. L. Gore & Associates, Inc. paid the most, $1,463.
General payments to Dr. Keyser by program year, 2016 to 2025
General payments to Dr. Keyser by kind, 2016 to 2025
- Food and beverage$2,78957%
- Travel and lodging$1,77036%
- Education$3006%
Companies that paid Dr. Keyser 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. Benjamin M. Keyser graduated from Philadelphia College of Osteopathic Medicine
Dr. Keyser graduated from Philadelphia College of Osteopathic Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Benjamin M. Keyser'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Benjamin M. Keyser
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. Benjamin M. Keyser's NPI number?
Dr. Benjamin M. Keyser's NPI number is 1568773232. It was assigned on June 28, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Benjamin M. Keyser?
Dr. Benjamin M. Keyser is a vascular surgeon in Lewisburg, Pennsylvania. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Dr. Benjamin M. Keyser practice?
Dr. Keyser practices at One Hospital Drive, Lewisburg, PA 17837. Dr. Keyser also practices at 1 Hospital Dr, Lewisburg, PA 17837. Dr. Keyser's primary practice is WellSpan Evangelical Community Hospital in Lewisburg, Pennsylvania, part of WellSpan Health. Dmand AI also links Dr. Keyser to 2 group practices and clinics, 1 clinical lab and 1 medical group.
What is Dr. Benjamin M. Keyser's office phone number?
The practice phone on file for Dr. Keyser is (570) 522-2000.
What is Dr. Benjamin M. Keyser's medical license number?
Dr. Keyser holds Pennsylvania license OS018770.
Which hospitals is Dr. Benjamin M. Keyser affiliated with?
Dr. Keyser practices at WellSpan Evangelical Community Hospital in Lewisburg, Pennsylvania. Dr. Keyser is also affiliated with Geisinger Medical Center.
What medical group is Dr. Benjamin M. Keyser part of?
Dr. Keyser is linked to WellSpan Digestive Health. Dmand AI links Dr. Keyser to 1 more medical group.
Does Dr. Benjamin M. Keyser accept Medicare?
Yes. CMS data shows Dr. Keyser billed Medicare for 1,489 services in 2024, and Dr. Keyser accepts Medicare assignment.
How many Medicare patients does Dr. Benjamin M. Keyser see?
CMS counts 811 Medicare patients who saw Dr. Keyser in 2024, with an average age of 76.
What services does Dr. Benjamin M. Keyser bill to Medicare?
In 2024, Dr. Keyser's most billed Medicare services were blood vessel study (93971), office visit, established patient (99213) and blood vessel study (93880).
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Where did Dr. Benjamin M. Keyser go to medical school?
Dr. Keyser graduated from Philadelphia College of Osteopathic Medicine in 2010.
What drugs does Dr. Benjamin M. Keyser prescribe most?
In 2024 Medicare Part D data, Dr. Keyser's most prescribed drugs by claims were Clopidogrel, Cilostazol and Xarelto.
Has Dr. Benjamin M. Keyser received payments from drug or device companies?
CMS Open Payments shows $4,859 in general payments to Dr. Keyser from 21 companies from 2016 to 2025. The largest total came from W. L. Gore & Associates, Inc.
How long has Dr. Benjamin M. Keyser been practicing?
Dr. Keyser graduated from medical school in 2010, 16 years ago.
Does Dr. Benjamin M. Keyser do research?
Dmand AI links 1 publication to Dr. Keyser.
Who does Dr. Benjamin M. Keyser publish with?
Dr. Keyser's most frequent co-authors are Benjamin Theo John Chandler, MD (1 shared paper), James R. Elmore, MD (1 shared paper) and Evan Joseph Ryer, MD (1 shared paper).
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