NPPES file of Aug 9, 2026

Lois Nora Mark, LCSW

Marriage & Family Therapist · San Mateo, CA

Lois Nora Mark, LCSW is a marriage & family therapist with a practice address in San Mateo, California, and NPI 1215077730, issued on Feb 7, 2007. Check the license (California MFC1356, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215077730
Name
Lois Nora Mark
Credential
LCSW
Primary taxonomy
Marriage & Family Therapist 106H00000X
License numbers
MFC1356 CA
LCS638 CA
Self-reported in NPPES; status is on the state search
Practice location
327 N San Mateo Dr, San Mateo, CA 94401
Phone
(650) 344-5162
Enumerated
Feb 7, 2007
Record last updated
Sep 11, 2025
Fax
(510) 865-3838
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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8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →

Also registered at 327 N San Mateo Dr

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

  1. W. Brown, M.D.Pain Medicine Physician1932402633
  2. Theodore Gradman, PH.D.Cognitive & Behavioral Psychologist1467666420
  3. Benjamin Griggs, M.D.Child & Adolescent Psychiatry Physician1245258219
  4. Kathleen Hynes, MFTMarriage & Family Therapist1265464135
  5. Tatiana Pekker, MFTMarriage & Family Therapist1881958650
  6. Jonathon Rose, PH.D.Adult Development & Aging Psychologist1154382380

Verify Lois Nora Mark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license MFC1356    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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Lois Nora Mark among 59,889 marriage & family therapist records in California

Lois Nora Mark, LCSW is one of 59,889 marriage & family therapist records with a practice address in California. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 7% of them.

  • NPI issued2007 · 7% of these records are older, 77% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

348 marriage & family therapist records list a practice address in San Mateo

They are 348 of the 3,909 NPPES records with a practice address in San Mateo, and 59,889 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 59,889 in California → Every provider in San Mateo → Marriage & Family Therapist nationwide →

The 8 marriage & family therapist records with the nearest ZIP codes

  1. Paul Agustinovich, PH.D.San Mateo, CA 944011508958976
  2. Edna(eddie)arbetman Arbetmantriska, MFTSan Mateo, CA 944011831251560
  3. Krysta Banazek, MFTSan Mateo, CA 944011760592901
  4. Marguerite Bartels, MFTSan Mateo, CA 944011619907565
  5. William Bell, LMFT, PH.D.San Mateo, CA 944011902831878
  6. Jeanie Cotton, LMFT, MSSan Mateo, CA 944011275695512
  7. Louis Facchino, MDIV LMFTSan Mateo, CA 944011861593543
  8. Jennifer Fan, PSY.D., LMFTSan Mateo, CA 944011841366804

Common questions

What is Lois Nora Mark, LCSW's NPI number?

Lois Nora Mark, LCSW's National Provider Identifier (NPI) is 1215077730, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Lois Nora Mark, LCSW located?

The NPPES record lists a practice address at 327 N San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 344-5162. Providers update this record themselves, so call before visiting.

How can I verify Lois Nora Mark, LCSW's license?

NPPES lists California license number MFC1356, 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. 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.