NPPES file of Aug 9, 2026

Maxwell Frederick Lydiatt, MD

Psychiatry Physician · Milwaukee, WI

Maxwell Frederick Lydiatt, MD is a psychiatry physician with a practice address in Milwaukee, Wisconsin, and NPI 1093383325, issued on Jun 14, 2021. Check the license (Wisconsin 85467, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093383325
Name
Maxwell Frederick Lydiatt
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
85467 WI
Self-reported in NPPES; status is on the state search
Practice location
1525 N 12TH St, Milwaukee, WI 53205
Phone
(414) 966-3030
Enumerated
Jun 14, 2021
Record last updated
Oct 14, 2025
Fax
(414) 649-1309
Medicaid ID
100332249 WI
Medicare enrollment
Enrolled (PECOS I20250830000678); accepts Medicare assignment
Medical or professional school
University Of Nebraska College Of Medicine, 2021
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1525 N 12TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amir Abdelli, MDPsychiatry Physician1265782668
  2. Darren Almagro, DOPsychiatry Physician1295262624
  3. Deborah Benevenuto, MDPsychiatry Physician1588221253
  4. Tracy Binius, MDPsychiatry Physician1194049676
  5. Alhaji CamaraPsychiatry Physician1356091706
  6. Ahmed Javed, M.D.Psychiatry Physician1043465263

Verify Maxwell Frederick Lydiatt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 85467
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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About as many Medicare Part D claims as the average psychiatry physician in 2024

997 Medicare Part D claims for 59 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Maxwell Lydiatt997
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate73 claims
  2. Fluoxetine Hcl59 claims
  3. Olanzapine51 claims
  4. Divalproex Sodium Er49 claims
  5. Hydroxyzine Hcl42 claims
  6. Buspirone Hcl37 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.

Bills Medicare through one group practice

  1. Mental Health Emergency Center, Inc.Milwaukee, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maxwell Frederick Lydiatt among 929 psychiatry physician records in Wisconsin

Maxwell Frederick Lydiatt, MD is one of 929 psychiatry physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 92% of them.

  • NPI issued2021 · 92% of these records are older, 5% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 47% of these records are
  • Graduated2021 · median 2005 among the 439 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Wisconsin

There are 929 psychiatry physician records in Wisconsin.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Amir Abdelli, MDMilwaukee, WI 532051265782668
  2. Darren Almagro, DOMilwaukee, WI 532051295262624
  3. Deborah Benevenuto, MDMilwaukee, WI 532051588221253
  4. Tracy Binius, MDMilwaukee, WI 532051194049676
  5. Alhaji CamaraMilwaukee, WI 532051356091706
  6. Ahmed Javed, M.D.Milwaukee, WI 532051043465263
  7. Noah Jeannette, DOMilwaukee, WI 532051265542948
  8. Ibrahim Khaja, MDMilwaukee, WI 532051740338417

Common questions

What is Maxwell Frederick Lydiatt, MD's NPI number?

Maxwell Frederick Lydiatt, MD's National Provider Identifier (NPI) is 1093383325, issued on Jun 14, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Maxwell Frederick Lydiatt, MD located?

The NPPES record lists a practice address at 1525 N 12TH St, Milwaukee, WI, 53205. Phone: (414) 966-3030. Providers update this record themselves, so call before visiting.

How can I verify Maxwell Frederick Lydiatt, MD's license?

NPPES lists Wisconsin license number 85467, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maxwell Frederick Lydiatt, MD prescribe under Medicare Part D?

In 2024, Maxwell Frederick Lydiatt, MD had 997 Medicare Part D claims for 59 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.