Mary H. Ludwiczak, MD
Obstetrics & Gynecology Physician · Longview, WA
Mary H. Ludwiczak, MD is an obstetrics & gynecology physician with a practice address in Longview, Washington, and NPI 1780678805, issued on Sep 2, 2005. Check the license (Washington MD00032784, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mary H. Ludwiczak
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD00032784 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1660 Delaware St, Longview, WA 98632
- Phone
- (360) 414-2800
- Enumerated
- Sep 2, 2005
- Record last updated
- Feb 4, 2022
- Fax
- (360) 414-2803
- Medicaid IDs
- 074463 OR
8178352 WA - Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,038 in Washington → Look up another NPI →
Also registered at 1660 Delaware St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Cruz, M.D.Obstetrics & Gynecology Physician1720166879
- J'Aime Graff, BA, C.C.C.E.Health Educator1871809194
- Saeyeal Lee, M.D.Obstetrics & Gynecology Physician1124185665
- Laura Lefever, DOObstetrics & Gynecology Physician1508000563
- Maria Magnuson, ARNPObstetrics & Gynecology Nurse Practitioner1396742540
- Leah Margolis, MDObstetrics & Gynecology Physician1104346428
Verify Mary H. Ludwiczak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00032784Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
192 Medicare Part D claims for 79 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Estradiol47 claims
- Solifenacin Succinate30 claims
- Clobetasol Propionate17 claims
- Climara13 claims
- Nystatin-Triamcinolone12 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.
Mary H. Ludwiczak among 1,038 obstetrics & gynecology physician records in Washington
Mary H. Ludwiczak, MD is one of 1,038 obstetrics & gynecology physician records with a practice address in Washington. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2022 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Washington
There are 1,038 obstetrics & gynecology physician records in Washington.
All 1,038 in Washington → Every provider in Longview → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Robert Cruz, M.D.Longview, WA 986321720166879
- Brittany Jones-Linares, MDLongview, WA 986321922637255
- Rebecca Kubitz, MDLongview, WA 986321861421547
- Saeyeal Lee, M.D.Longview, WA 986321124185665
- Laura Lefever, DOLongview, WA 986321508000563
- Leah Margolis, MDLongview, WA 986321104346428
- Heather Ross Blackford, D.O.Longview, WA 986321821338591
- Clarissa Weiss, M.D.Longview, WA 986321225157225
Common questions
What is Mary H. Ludwiczak, MD's NPI number?
Mary H. Ludwiczak, MD's National Provider Identifier (NPI) is 1780678805, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary H. Ludwiczak, MD located?
The NPPES record lists a practice address at 1660 Delaware St, Longview, WA, 98632. Phone: (360) 414-2800. Providers update this record themselves, so call before visiting.
How can I verify Mary H. Ludwiczak, MD's license?
NPPES lists Washington license number MD00032784, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary H. Ludwiczak, MD prescribe under Medicare Part D?
In 2024, Mary H. Ludwiczak, MD had 192 Medicare Part D claims for 79 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.