NPPES file of Aug 9, 2026

Shannon Pheadra Allen-Gryzwa, MD

Family Medicine Physician · Milwaukee, WI

Shannon Pheadra Allen-Gryzwa, MD is a family medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1306819479, issued on Feb 9, 2006. Check the license (Wisconsin 40073, 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
1306819479
Name
Shannon Pheadra Allen-Gryzwa
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
40073 WI
Self-reported in NPPES; status is on the state search
Practice location
Premise Healthcare Miller Health & Fitness, Milwaukee, WI 53208
Phone
(262) 928-1900
Enumerated
Feb 9, 2006
Record last updated
Feb 16, 2024
Medicaid ID
32639500 WI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Shannon Pheadra Allen-Gryzwa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 40073
    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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83% fewer Medicare Part D claims than the average family medicine physician in 2024

615 Medicare Part D claims for 207 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Shannon Allen-Gryzwa615
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium41 claims
  2. Lisinopril35 claims
  3. Levothyroxine Sodium28 claims
  4. Pravastatin Sodium25 claims
  5. Metoprolol Succinate24 claims
  6. Duloxetine Hcl21 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.

Shannon Pheadra Allen-Gryzwa among 3,765 family medicine physician records in Wisconsin

Shannon Pheadra Allen-Gryzwa, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2024 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

299 family medicine physician records list a practice address in Milwaukee

They are 299 of the 18,389 NPPES records with a practice address in Milwaukee, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Joselito Baylon, MDMilwaukee, WI 532081467469296
  2. Ramneet Bhathal, M.D.Milwaukee, WI 532081508129545
  3. Margaret Dunn, M.D.Milwaukee, WI 532081285639765
  4. Mallory Gerber, PA-CMilwaukee, WI 532081487543450
  5. Madelaine Tully, MDMilwaukee, WI 532081255419784
  6. Brintha Vasagar, MD, MPHMilwaukee, WI 532081780926188
  7. Michael Brewer, DOMilwaukee, WI 532071780945857
  8. Lisa Casey, DOGlendale, WI 532091215909791

Common questions

What is Shannon Pheadra Allen-Gryzwa, MD's NPI number?

Shannon Pheadra Allen-Gryzwa, MD's National Provider Identifier (NPI) is 1306819479, issued on Feb 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Shannon Pheadra Allen-Gryzwa, MD located?

The NPPES record lists a practice address at Premise Healthcare Miller Health & Fitness, Milwaukee, WI, 53208. Phone: (262) 928-1900. Providers update this record themselves, so call before visiting.

How can I verify Shannon Pheadra Allen-Gryzwa, MD's license?

NPPES lists Wisconsin license number 40073, 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 Shannon Pheadra Allen-Gryzwa, MD prescribe under Medicare Part D?

In 2024, Shannon Pheadra Allen-Gryzwa, MD had 615 Medicare Part D claims for 207 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.