NPPES file of Aug 9, 2026

Marta K. Wasiak, MD

Psychiatry Physician · Chico, CA

Marta K. Wasiak, MD is a psychiatry physician with a practice address in Chico, California, and NPI 1346314291, issued on Nov 20, 2006. Check the license on the Medical Board of California; 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
1346314291
Name
Marta K. Wasiak
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
ME82006 FL
Self-reported in NPPES; status is on the state search
Practice location
1601 Concord Ave, Chico, CA 95928
Phone
(530) 879-5000
Enumerated
Nov 20, 2006
Record last updated
Nov 26, 2024
Fax
(352) 351-9495
Medicaid ID
000745500 FL
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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Also registered at 1601 Concord Ave

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

  1. Thien Hang Borja, NPAdult Health Nurse Practitioner1467921734
  2. Natalie Butler, RDRegistered Dietitian1407401334
  3. Chloe CanonCase Management Registered Nurse1013700251
  4. Greta Gibeau, AU.D.Audiologist-Hearing Aid Fitter1235763046
  5. Alberto GutierrezClinical Social Worker1609406909
  6. Tiffany Hayes, R.D.Registered Dietitian1356638985

Verify Marta K. Wasiak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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 California license search

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96% fewer Medicare Part D claims than the average psychiatry physician in 2024

37 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Marta Wasiak37
  2. Specialty average1,000

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: $43.29

2 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marta Wasiak$43.29
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Marta K. Wasiak among 8,673 psychiatry physician records in California

Marta K. Wasiak, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2024 · 54% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Nicole Wiecks, DOChico, CA 959281457860686
  2. Mark Allen, M.D.Chico, CA 959261114155256
  3. Miguel Alvarellos, M.D.Chico, CA 959261720189939
  4. Samuel Brown, M.D.Chico, CA 959261396923868
  5. Christopher Dunham, M.D.Chico, CA 959261639193659
  6. James Glover, M.D.Chico, CA 959261649321068
  7. Hallie Hogan, MDChico, CA 959261629507868
  8. David Kidwell, M.D.Chico, CA 959261669611950

Common questions

What is Marta K. Wasiak, MD's NPI number?

Marta K. Wasiak, MD's National Provider Identifier (NPI) is 1346314291, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marta K. Wasiak, MD located?

The NPPES record lists a practice address at 1601 Concord Ave, Chico, CA, 95928. Phone: (530) 879-5000. Providers update this record themselves, so call before visiting.

How can I verify Marta K. Wasiak, MD's license?

Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marta K. Wasiak, MD prescribe under Medicare Part D?

In 2024, Marta K. Wasiak, MD had 37 Medicare Part D claims; 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.