Dr. Alan L. Detwiler, MD
- Medicare services, 2018
- 436
- Part D claims, 2017
- 23
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 125 Hospital Drive, Watertown, WI 53098
- Practice phone
- Call (920) 261-4210
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Detwiler's professional email, personal email and mobile number
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Dr. Alan L. Detwiler is an internist in Fort Atkinson, Wisconsin
Dr. Detwiler practices at Watertown Regional Medical Center in Watertown, Wisconsin, part of Lifepoint Health.
Dr. Detwiler's NPI, 1871597211, was assigned on June 13, 2005. Dr. Detwiler holds Wisconsin license 20862.
- NPI
- 1871597211NPI Registry (opens in a new tab)
- NPI enumeration date
- June 13, 2005
- NPI status
- Active
- Practice phone
- (920) 261-4210
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alan L. Detwiler practices in Watertown and Fort Atkinson
Dr. Detwiler's primary practice is Watertown Regional Medical Center, at 125 Hospital Drive, Watertown, WI 53098 in Dodge County. The practice phone is (920) 261-4210. The NPI Registry lists Dr. Detwiler's practice address as 611 E Sherman Ave, Fort Atkinson, WI 53538.
- Watertown Regional Medical CenterPrimary125 Hospital Drive, Watertown, WI 53098 · Dodge CountyPhone(920) 261-4210
- NPI Registry address611 E Sherman Ave, Fort Atkinson, WI 53538 · Jefferson CountyPhone(920) 262-4210
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Alan L. Detwiler is affiliated with 1 site of care and 1 medical group
Dr. Detwiler's primary practice is Watertown Regional Medical Center in Watertown, Wisconsin, part of Lifepoint Health. The medical group on file is Fort HealthCare.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alan L. Detwiler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Detwiler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Watertown Regional Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alan L. Detwiler is one of 1,675 internists in Wisconsin
Internal medicine is Dr. Detwiler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Detwiler is licensed in Wisconsin.
Specialties and state licenses
- Internal medicine, WisconsinPrimary
Internists near Dr. Detwiler
Counts of internists 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. Alan L. Detwiler billed Medicare for 436 services in 2018
CMS data shows 436 Medicare services from Dr. Detwiler across 6 procedure codes in 2018. Medicare paid $27,937 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Detwiler's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 6782018: 43636%
Dr. Detwiler compared with the Wisconsin median for internists, 2018
- Dr. Detwiler
- Wisconsin median
- Medicare services
- 436vs 457Close to median
- Part D claims
- 23vs 43395% below
Medians across 1,658 internists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Detwiler's most billed Medicare procedure codes, 2018
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. Detwiler and other internists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alan L. Detwiler's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Detwiler's median patient age at 63, with 100% women.
Dr. Detwiler'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
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Alan L. Detwiler wrote 23 Medicare Part D claims in 2017
In 2017, Dr. Detwiler wrote 23 Medicare Part D claims. They cover 2 drugs, with $250 in total drug cost. In 2016, CMS named 47 claims across 3 drugs.
Dr. Detwiler's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 472017: 2351%
Drugs named by CMS: 2 in 2017, 3 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Sources for Dr. Alan L. Detwiler'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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) |
| 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. Alan L. Detwiler
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. Alan L. Detwiler's NPI number?
Dr. Alan L. Detwiler's NPI number is 1871597211. It was assigned on June 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Alan L. Detwiler?
Dr. Alan L. Detwiler is an internist in Fort Atkinson, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Alan L. Detwiler practice?
Dr. Detwiler practices at 125 Hospital Drive, Watertown, WI 53098. Dr. Detwiler also practices at 611 E Sherman Ave, Fort Atkinson, WI 53538. Dr. Detwiler's primary practice is Watertown Regional Medical Center in Watertown, Wisconsin, part of Lifepoint Health.
What is Dr. Alan L. Detwiler's office phone number?
The practice phone on file for Dr. Detwiler is (920) 261-4210.
What is Dr. Alan L. Detwiler's medical license number?
Dr. Detwiler holds Wisconsin license 20862.
Which hospitals is Dr. Alan L. Detwiler affiliated with?
Dr. Detwiler practices at Watertown Regional Medical Center in Watertown, Wisconsin.
What medical group is Dr. Alan L. Detwiler part of?
Dr. Detwiler is linked to Fort HealthCare.
Does Dr. Alan L. Detwiler accept Medicare?
Yes. CMS data shows Dr. Detwiler billed Medicare for 436 services in 2018.
What services does Dr. Alan L. Detwiler bill to Medicare?
In 2018, Dr. Detwiler's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99222).
What drugs does Dr. Alan L. Detwiler prescribe most?
In 2017 Medicare Part D data, Dr. Detwiler's most prescribed drugs by claims were Levofloxacin and Amoxicillin-Clavulanate Potass.
How long has Dr. Alan L. Detwiler been practicing?
Dr. Detwiler's NPI was assigned in 2005.
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