William Joseph Friedrich, DDS
Dentist · Chicago, IL
William Joseph Friedrich, DDS is a dentist with a practice address in Chicago, Illinois, and NPI 1225175805, issued on Jan 31, 2007. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Joseph Friedrich
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- Practice location
- 201 E Huron St, Chicago, IL 60611
- Phone
- (312) 926-3264
- Enumerated
- Jan 31, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Also registered at 201 E Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Joseph Friedrich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average dentist in 2024
60 Medicare Part D claims for 42 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $31.45
2 payments; by number, the most common kind was education; the largest payer was Envista Holdings Corporation. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William Joseph Friedrich among 4,522 dentist records in Illinois
William Joseph Friedrich, DDS is one of 4,522 dentist records with a practice address in Illinois. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 19% of them.
- NPI issued2007 · 19% of these records are older, 62% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,148 dentist records list a practice address in Chicago
They are 1,148 of the 63,379 NPPES records with a practice address in Chicago, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Chicago → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Daniel Au, DDSChicago, IL 606111992906309
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- William Couvelis, DDSChicago, IL 606111013043199
- Agatha Dziedziech, DDSChicago, IL 606111790851053
- William Frericks, DDSChicago, IL 606111427050608
- Robin Gay, DDSChicago, IL 606111548461940
- Ruth Griggs Nguyen, DDSChicago, IL 606111750447884
- Paul Landman, DDSChicago, IL 606111962603894
Common questions
What is William Joseph Friedrich, DDS's NPI number?
William Joseph Friedrich, DDS's National Provider Identifier (NPI) is 1225175805, issued on Jan 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Joseph Friedrich, DDS located?
The NPPES record lists a practice address at 201 E Huron St, Chicago, IL, 60611. Phone: (312) 926-3264. Providers update this record themselves, so call before visiting.
How can I verify William Joseph Friedrich, DDS's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does William Joseph Friedrich, DDS prescribe under Medicare Part D?
In 2024, William Joseph Friedrich, DDS had 60 Medicare Part D claims for 42 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.