Dr. Donald C. Fischer, MD
- Medicare services, 2021
- 85
- Part D claims, 2024
- 59
- Industry payments
- $27,242
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 4000 W Spencer St, Appleton, WI 54914
- Practice phone
- Call (262) 284-8130
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Fischer's professional email, personal email and mobile number
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Dr. Donald C. Fischer is a psychiatrist in Appleton, Wisconsin
Dr. Fischer practices in Appleton, Wisconsin.
Dr. Fischer's NPI, 1629069737, was assigned on October 31, 2005. Dr. Fischer holds Wisconsin license 22356020.
- NPI
- 1629069737NPI Registry (opens in a new tab)
- NPI enumeration date
- October 31, 2005
- NPI status
- Active
- Practice phone
- (262) 284-8130
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Donald C. Fischer's practice address is in Appleton, Wisconsin
Dr. Fischer's practice address in the NPI Registry is 4000 W Spencer St, Appleton, WI 54914, in Outagamie County. The practice phone is (262) 284-8130.
- NPI Registry address4000 W Spencer St, Appleton, WI 54914 · Outagamie CountyPhone(262) 284-8130
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Donald C. Fischer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fischer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Fischer's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Donald C. Fischer is one of 688 psychiatrists in Wisconsin
Psychiatry is Dr. Fischer's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Fischer is licensed in Wisconsin.
Specialties and state licenses
- Psychiatry, WisconsinPrimary
Psychiatrists near Dr. Fischer
Counts of psychiatrists 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. Donald C. Fischer billed Medicare for 85 services in 2021
CMS data shows 85 Medicare services from Dr. Fischer across 2 procedure codes in 2021, all of them office visits. Medicare paid $7,219 for them. Every service was in an office.
Dr. Fischer's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1332021: 8536%
Dr. Fischer compared with the Wisconsin median for psychiatrists, 2021
- Dr. Fischer
- Wisconsin median
- Medicare services
- 85vs 12834% below
- Part D claims
- 22vs 23291% below
Medians across 753 psychiatrists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Fischer's most billed Medicare procedure codes, 2021
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. Fischer and other psychiatrists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald C. Fischer wrote 59 Medicare Part D claims in 2024
In 2024, Dr. Fischer wrote 59 Medicare Part D claims. 97% of them were for generic drugs. CMS names the drug for 22 of them, across 2 drugs with 11 or more claims each, at $206 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Fischer's Part D claims by kind of drug, 2024
- Generic57 claims97%
- Brand-name and other2 claims3%
Dr. Fischer'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. Fischer's Part D claims, 2024
- Antibiotics24%14 of 59 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: 112024: 22100%
Drugs named by CMS: 2 in 2024, 1 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
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Dr. Donald C. Fischer received $27,242 in industry payments from 2016 to 2024
CMS Open Payments shows 198 general payments to Dr. Fischer from 12 drug and device companies from 2016 to 2024. Speaker and faculty fees make up the largest share, 76% of the total. Alkermes, Inc. paid the most, $25,695.
General payments to Dr. Fischer by program year, 2016 to 2024
General payments to Dr. Fischer by kind, 2016 to 2024
- Speaker and faculty fees$20,70076%
- Food and beverage$4,27116%
- Travel and lodging$2,2398%
- Education$320%
Companies that paid Dr. Fischer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Donald C. Fischer'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 Practice 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 |
| 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) |
| 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. Donald C. Fischer
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. Donald C. Fischer's NPI number?
Dr. Donald C. Fischer's NPI number is 1629069737. It was assigned on October 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald C. Fischer?
Dr. Donald C. Fischer is a psychiatrist in Appleton, Wisconsin. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Donald C. Fischer practice?
Dr. Fischer practices at 4000 W Spencer St, Appleton, WI 54914.
What is Dr. Donald C. Fischer's office phone number?
The practice phone on file for Dr. Fischer is (262) 284-8130.
What is Dr. Donald C. Fischer's medical license number?
Dr. Fischer holds Wisconsin license 22356020.
Does Dr. Donald C. Fischer accept Medicare?
Yes. CMS data shows Dr. Fischer billed Medicare for 85 services in 2021.
What services does Dr. Donald C. Fischer bill to Medicare?
In 2021, Dr. Fischer's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99215).
What drugs does Dr. Donald C. Fischer prescribe most?
In 2024 Medicare Part D data, Dr. Fischer's most prescribed drugs by claims were Alprazolam and Citalopram HBr.
Has Dr. Donald C. Fischer received payments from drug or device companies?
CMS Open Payments shows $27,242 in general payments to Dr. Fischer from 12 companies from 2016 to 2024. The largest total came from Alkermes, Inc.
How long has Dr. Donald C. Fischer been practicing?
Dr. Fischer's NPI was assigned in 2005.
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