Mary Lyn Meier
Speech-Language Pathologist · Fairfield, CA
Mary Lyn Meier is a speech-language pathologist with a practice address in Fairfield, California, and NPI 1932666849, issued on Feb 27, 2019. Check the license (California 35331, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Lyn Meier
- Primary taxonomy
- Speech-Language Pathologist 235Z00000X
- License number
- 35331 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1860 Pennsylvania Ave Ste 305, Fairfield, CA 94533
- Phone
- (707) 646-4333
- Enumerated
- Feb 27, 2019
- Record last updated
- Oct 17, 2025
- Fax
- (707) 646-4833
- Medicare enrollment
- Enrolled (PECOS I20240307001600); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest speech-language pathologist records → All 13,141 in California → Look up another NPI →
Verify Mary Lyn Meier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 35331Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Northbay Health Medical FoundationFairfield, CA
- Northbay Physicians Surgery Center, LLCFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Lyn Meier among 13,141 speech-language pathologist records in California
Mary Lyn Meier is one of 13,141 speech-language pathologist records with a practice address in California. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 46% of them.
- NPI issued2019 · 46% of these records are older, 48% newer
- In a Medicare fileYes · 3% of these records are
- In the CMS Doctors and Clinicians fileYes · 4% of these records are
- Graduated2022 · median 2017 among the 573 with a school on file
- Record last updated2025 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 speech-language pathologist records list a practice address in Fairfield
They are 38 of the 3,595 NPPES records with a practice address in Fairfield, and 13,141 speech-language pathologist records in California.
All 13,141 in California → Every provider in Fairfield → Speech-Language Pathologist nationwide →
The 8 speech-language pathologist records with the nearest ZIP codes
- Kevin Griffith, CCC-SLPFairfield, CA 945331730526575
- Christina HarmanFairfield, CA 945331942617238
- Sneha JacobFairfield, CA 945331114363801
- McLeod LarsenFairfield, CA 945331811377385
- Anna Leis, M.S., CCC-SLPFairfield, CA 945331356615744
- Kelly McMahon, SPFairfield, CA 945331487064903
- Alison Moore, M.S., M.ED., CCC/SLPFairfield, CA 945331871929158
- Melissa PinaFairfield, CA 945331679823504
Common questions
What is Mary Lyn Meier's NPI number?
Mary Lyn Meier's National Provider Identifier (NPI) is 1932666849, issued on Feb 27, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Lyn Meier located?
The NPPES record lists a practice address at 1860 Pennsylvania Ave Ste 305, Fairfield, CA, 94533. Phone: (707) 646-4333. Providers update this record themselves, so call before visiting.
How can I verify Mary Lyn Meier's license?
NPPES lists California license number 35331, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.