Dr. Andrew James Dittenhofer, DO
- Medicare services, 2024
- 261
- Medicare patients, 2024
- 165
- Part D claims, 2024
- 112
- MIPS score, 2024
- 83
- Hospital affiliations
- 1
- Practice address
- 1001 E Pennsylvania, Ottumwa, IA 52501
- Practice phone
- Call (641) 682-7511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dittenhofer'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. Andrew James Dittenhofer is a general surgeon in Ottumwa, Iowa
Dr. Dittenhofer practices at Ottumwa Regional Health Center in Ottumwa, Iowa, part of Lifepoint Health.
Dr. Dittenhofer's NPI, 1174811764, was assigned on July 16, 2011. Dr. Dittenhofer holds Ohio license 34.012791.
- NPI
- 1174811764NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688946106
- NPI enumeration date
- July 16, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (641) 682-7511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew James Dittenhofer practices at Ottumwa Regional Health Center in Ottumwa, Iowa
Dr. Dittenhofer's primary practice is Ottumwa Regional Health Center, at 1001 E Pennsylvania, Ottumwa, IA 52501 in Wapello County. The practice phone is (641) 682-7511.
- Ottumwa Regional Health Center1001 E Pennsylvania, Ottumwa, IA 52501 · Wapello CountyPhone(641) 682-7511
Source: Dmand AI Affiliation Data
Dr. Andrew James Dittenhofer is affiliated with 3 sites of care and 4 medical groups
Dr. Dittenhofer's primary practice is Ottumwa Regional Health Center in Ottumwa, Iowa, part of Lifepoint Health. The medical group on file is Ottumwa Health Group. Dmand AI also links Dr. Dittenhofer to 3 more medical groups and 2 group practices and clinics, 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. Andrew James Dittenhofer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dittenhofer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ottumwa Regional Health Center | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew James Dittenhofer is one of 317 general surgeons in Iowa
Surgery is Dr. Dittenhofer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Dittenhofer is licensed in Ohio.
Specialties and state licenses
- Surgery, OhioPrimary
General surgeons near Dr. Dittenhofer
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. Andrew James Dittenhofer billed Medicare for 261 services in 2024
CMS data shows 261 Medicare services from Dr. Dittenhofer across 8 procedure codes in 2024, for 165 Medicare patients. Medicare paid $19,419 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Dittenhofer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1462024: 22453%
- Surgery
- 2023: 112024: 37236%
Dr. Dittenhofer compared with the Iowa median for general surgeons, 2024
- Dr. Dittenhofer
- Iowa median
- Medicare services
- 261vs 16459% above
- Medicare patients
- 165vs 14613% above
- Part D claims
- 68vs 4358% above
Medians across 332 general surgeons in Iowa with Dmand AI profiles that report each measure.
Dr. Dittenhofer'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dittenhofer and other general surgeons in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrew James Dittenhofer treated 165 Medicare patients in 2024, average age 69
CMS counts 165 Medicare patients who saw Dr. Dittenhofer in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 31% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dittenhofer's median patient age at 56, with 53% women.
Dr. Dittenhofer's Medicare patients by age, 2024
Dr. Dittenhofer's Medicare patients by sex, 2024
- Women5835%
- Men10765%
Chronic conditions among Dr. Dittenhofer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis48%
- Ischemic heart disease41%
- Diabetes36%
- Anxiety34%
- COPD32%
- Chronic kidney disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dittenhofer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew James Dittenhofer wrote 112 Medicare Part D claims in 2024
In 2024, Dr. Dittenhofer wrote 112 Medicare Part D claims for 40 patients. 96% of them were for generic drugs. CMS names the drug for 68 of them, across 2 drugs with 11 or more claims each, at $360 in total drug cost. In 2023, CMS named 49 claims across 3 drugs.
Dr. Dittenhofer's Part D claims by kind of drug, 2024
- Generic108 claims96%
- Brand-name and other4 claims4%
Dr. Dittenhofer'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. Dittenhofer's Part D claims, 2024
- Opioids20%22 of 112 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: 492024: 6839%
Drugs named by CMS: 2 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. Andrew James Dittenhofer scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Dittenhofer for performance year 2024, reported as part of a group. Dr. Dittenhofer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Dittenhofer's MIPS scores, performance year 2024
- 83of 100Final score
- 59.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Colonoscopy: 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)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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)
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Dr. Andrew James Dittenhofer received $3,285 in industry payments from 2017 to 2019
CMS Open Payments shows 32 general payments to Dr. Dittenhofer from 9 drug and device companies from 2017 to 2019. Travel and lodging make up the largest share, 78% of the total. Intuitive Surgical, Inc. paid the most, $3,077.
General payments to Dr. Dittenhofer by program year, 2017 to 2019
General payments to Dr. Dittenhofer by kind, 2017 to 2019
- Travel and lodging$2,55378%
- Food and beverage$73222%
Companies that paid Dr. Dittenhofer the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Andrew James Dittenhofer'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) |
| 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. Andrew James Dittenhofer
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. Andrew James Dittenhofer's NPI number?
Dr. Andrew James Dittenhofer's NPI number is 1174811764. It was assigned on July 16, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew James Dittenhofer?
Dr. Andrew James Dittenhofer is a general surgeon in Ottumwa, Iowa. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Andrew James Dittenhofer practice?
Dr. Dittenhofer practices at 1001 E Pennsylvania, Ottumwa, IA 52501. Dr. Dittenhofer's primary practice is Ottumwa Regional Health Center in Ottumwa, Iowa, part of Lifepoint Health. Dmand AI also links Dr. Dittenhofer to 3 medical groups and 2 group practices and clinics.
What is Dr. Andrew James Dittenhofer's office phone number?
The practice phone on file for Dr. Dittenhofer is (641) 682-7511.
What is Dr. Andrew James Dittenhofer's medical license number?
Dr. Dittenhofer holds Ohio license 34.012791.
Which hospitals is Dr. Andrew James Dittenhofer affiliated with?
Dr. Dittenhofer practices at Ottumwa Regional Health Center in Ottumwa, Iowa.
What medical group is Dr. Andrew James Dittenhofer part of?
Dr. Dittenhofer is linked to Ottumwa Health Group. Dmand AI links Dr. Dittenhofer to 3 more medical groups.
Does Dr. Andrew James Dittenhofer accept Medicare?
Yes. CMS data shows Dr. Dittenhofer billed Medicare for 261 services in 2024, and Dr. Dittenhofer accepts Medicare assignment.
What is Dr. Andrew James Dittenhofer's MIPS score?
Dr. Dittenhofer's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Andrew James Dittenhofer see?
CMS counts 165 Medicare patients who saw Dr. Dittenhofer in 2024, with an average age of 69.
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What services does Dr. Andrew James Dittenhofer bill to Medicare?
In 2024, Dr. Dittenhofer's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and office visit, new patient (99204).
What drugs does Dr. Andrew James Dittenhofer prescribe most?
In 2024 Medicare Part D data, Dr. Dittenhofer's most prescribed drugs by claims were Pantoprazole Sodium and Hydrocodone-Acetaminophen.
Has Dr. Andrew James Dittenhofer received payments from drug or device companies?
CMS Open Payments shows $3,285 in general payments to Dr. Dittenhofer from 9 companies from 2017 to 2019. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Andrew James Dittenhofer been practicing?
Dr. Dittenhofer graduated from medical school in 2011, 15 years ago.
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