Are you Mark K. Detweiler, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1B Commons Dr, Unit 9A, Londonderry, NH 03053
About Dr. Detweiler
Listed in the NPI registry as a specialist, Mark K. Detweiler, M.D. practices in Londonderry, NH. Mark graduated from Pennsylvania State University College of Medicine in 1979. Mark is also listed as specializing in gastroenterology. Medicare claims data shows Mark provided 156 services to 103 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. NPI 1548344583 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (603) 818-4712
- Email not available
Practice Locations
1B COMMONS DR UNIT 9A
Londonderry, NH 03053
Procedures Most Often Billed to Medicare
156 services · 103 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
75 | As often as other peers in Specialist |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
64 | As often as other peers in Specialist |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
17 | Less often than most peers in Specialist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Pennsylvania State University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1979 at Pennsylvania State University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Mark K. Detweiler's specialty?
Mark K. Detweiler is a specialist in Londonderry, NH. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Mark K. Detweiler?
Mark K. Detweiler is listed at 1B Commons Dr Unit 9A, Londonderry, NH 03053. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mark K. Detweiler?
The number on file is (603) 818-4712. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark K. Detweiler?
Mark K. Detweiler's National Provider Identifier is 1548344583. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Mark K. Detweiler's education?
Mark K. Detweiler attended Pennsylvania State University College of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark K. Detweiler have?
Mark K. Detweiler has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What is Mark K. Detweiler known for?
According to Medicare billing data, Mark K. Detweiler the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark K. Detweiler's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark K. Detweiler. If this is you, claiming it is free.
Guide.md
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