NPPES file of Aug 9, 2026

Itamar Yaakov Gnatt, M.D

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Milwaukee, WI

Itamar Yaakov Gnatt, M.D is an undersea and hyperbaric medicine (preventive medicine) physician with a practice address in Milwaukee, Wisconsin, and NPI 1447781992, issued on Mar 27, 2017. Check the license (Wisconsin 70439, 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
1447781992
Name
Itamar Yaakov Gnatt
Credential
M.D
Primary taxonomy
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician 2083P0011X
License numbers
70439 WI
70439-20 WI
26680 NV
Self-reported in NPPES; status is on the state search
Practice location
945 N 12TH St, Milwaukee, WI 53233
Phone
(414) 219-2000
Enumerated
Mar 27, 2017
Record last updated
Oct 3, 2025
Medicaid ID
10005229 WI
Medicare enrollment
Enrolled (PECOS I20210621002219); accepts Medicare assignment
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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8 nearest undersea and hyperbaric medicine (preventive medicine) physician records → All 27 in Wisconsin → Look up another NPI →

Also registered at 945 N 12TH St

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

  1. Ahmed Abdelmagid, M.D.Critical Care Medicine (Internal Medicine) Physician1144589383
  2. Mohammad Abdul AzeemNeurology Physician1295229797
  3. Ibrahim Abu-ArqoubPharmacist1033539390
  4. Stephanie Adamczyk, PAPhysician Assistant1063007441
  5. Shant Adamian, DOObstetrics & Gynecology Physician1952861668
  6. Ola AhmadStudent in an Organized Health Care Education/Training Program1629871645

Verify Itamar Yaakov Gnatt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 70439    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

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58% fewer Medicare Part D claims than the average undersea and hyperbaric medicine (preventive medicine) physician in 2024

128 Medicare Part D claims for 55 beneficiaries, against an average of 308 among the 148 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Itamar Gnatt128
  2. Specialty average308

Most prescribed

  1. Doxycycline Hyclate40 claims
  2. Levofloxacin19 claims
  3. Cephalexin18 claims
  4. Gentamicin Sulfate12 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 4 group practices

  1. Aurora Advanced Healthcare, Inc.Grafton, WI
  2. Aurora Medical Group, Inc.Milwaukee, WI
  3. Lakeshore Medical Clinic LLCCudahy, WI
  4. Naz Wahab MD PCLas Vegas, NV

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

Itamar Yaakov Gnatt among 27 undersea and hyperbaric medicine (preventive medicine) physician records in Wisconsin

Itamar Yaakov Gnatt, M.D is one of 27 undersea and hyperbaric medicine (preventive medicine) physician records with a practice address in Wisconsin. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 85% of them.

  • NPI issued2017 · 85% of these records are older, 11% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 89% of these records are
  • Graduated2017 · median 1997 among the 24 with a school on file
  • Record last updated2025 · 30% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083P0011X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers in Wisconsin

There are 27 undersea and hyperbaric medicine (preventive medicine) physician records in Wisconsin.

All 27 in Wisconsin → Every provider in Milwaukee → Undersea and Hyperbaric Medicine (Preventive Medicine) Physician nationwide →

The 8 undersea and hyperbaric medicine (preventive medicine) physician records with the nearest ZIP codes

  1. Saira Khan, M.D.West Allis, WI 532271780892927
  2. Cory Dubose, D.O.Milwaukee, WI 532151811356736
  3. Sue Fregien, MDMilwaukee, WI 532151457519613
  4. Laurie Gesell, MDMilwaukee, WI 532151194895920
  5. Gerald Godfrey, M.D.Milwaukee, WI 532151487689451
  6. Richard Hodgson, MDMilwaukee, WI 532151932108354
  7. Lori McAllister, M.D.Milwaukee, WI 532151316148273
  8. Luis Pacheco Pares, MDMilwaukee, WI 532151285112672

Common questions

What is Itamar Yaakov Gnatt, M.D's NPI number?

Itamar Yaakov Gnatt, M.D's National Provider Identifier (NPI) is 1447781992, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Itamar Yaakov Gnatt, M.D located?

The NPPES record lists a practice address at 945 N 12TH St, Milwaukee, WI, 53233. Phone: (414) 219-2000. Providers update this record themselves, so call before visiting.

How can I verify Itamar Yaakov Gnatt, M.D's license?

NPPES lists Wisconsin license number 70439, 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 Itamar Yaakov Gnatt, M.D prescribe under Medicare Part D?

In 2024, Itamar Yaakov Gnatt, M.D had 128 Medicare Part D claims for 55 beneficiaries; the average among undersea and hyperbaric medicine (preventive medicine) physician prescribers was 308. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.