NPPES file of Aug 9, 2026

Genetic Counselor (M.S.) in California

942 NPPES records list genetic counselor (m.s.) with a practice address in California, 2.4 per 100,000 residents, the 16th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 17 of 19.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 170300000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 161

  1. Los Angeles161
  2. San Francisco126
  3. Sacramento55
  4. Palo Alto47
  5. Oakland41

Genetic Counselor (M.S.) records in California

  1. Emma Smith, MS, GCStanford, CA 943051790215861
  2. Liana SmolichSan Francisco, CA 941431457876831
  3. Angelica Smullin, MSWest Hollywood, CA 900481508588575
  4. Stephanie Snow, M.S.San Jose, CA 951231689734089
  5. Elise Sobotka, MS, MPHDuarte, CA 910101477163814
  6. Cindy Soliday, MSSan Jose, CA 951231376523084
  7. Ilana Solomon, SCM, MA, LCGCDuarte, CA 910101437561651
  8. Sharon Solomon, M.S., C.G.C.San Jose, CA 951231366427262
  9. Erica Sontheimer, MS, CGCSan Diego, CA 921261457238446
  10. Kerstin Spangner, M.S., C.G.C.San Francisco, CA 941181659359925
  11. Jessica Spiewak, MS, PHDSan Diego, CA 921211053973362
  12. Natalya SpivakSan Francisco, CA 941151578986394
  13. Cynthia Spring-Pearson, MS, CGCRiverside, CA 925051477611523
  14. Monica StampBurbank, CA 915051750834677
  15. Dana StolarAliso Viejo, CA 926561306492137
  16. Jenna Stoltzfus, MS, LGCPalo Alto, CA 943041114532769
  17. Julia StonePalo Alto, CA 943041750877411
  18. Melissa Strassberg, MS, CGCSan Francisco, CA 941031649254418
  19. Isabella Strawn, MS, LCGCPalo Alto, CA 943041760207468
  20. Michelle Strecker, MS, CGCIrvine, CA 926181316936958
  21. Trishna Subas, M.S.Mountain View, CA 940401770934093
  22. Hanae Sugiura, MSOrange, CA 928681356163414
  23. Sophia Sussman, MS, CGCStanford, CA 943051598694291
  24. Ayaka SuzukiSacramento, CA 958171275051534
  25. Laura Swaminathan, M.S.San Francisco, CA 941151871560391
  26. Carol SymmonsWalnut Creek, CA 945981588176275
  27. Heather Tabery, MS, CGCMountain View, CA 940401841568359
  28. Siavash Tabrizy, M.S., MFT., PH.DLong Beach, CA 908031063580462
  29. Sydelle Tabrizy, M.S., MFT.Irvine, CA 926141821158403
  30. Karina Talreja, MSPalo Alto, CA 943041205351822
  31. Olivia Tan, M.S., C.G.C.Los Angeles, CA 900481710326244
  32. Stephany Tandy, MS, GCFontana, CA 923351871774133
  33. Daisy TapiaSan Francisco, CA 941151548802820
  34. Debra Tasic, DR.P.HLos Angeles, CA 900331013329721
  35. Zina TatsugawaSylmar, CA 913421558775262
  36. Jamie Taylor, M.S., C.G.C.Los Angeles, CA 900661043341118
  37. Joanne Taylor, CGCStanford, CA 943051124160379
  38. Emily Teranishi, CGCOrange, CA 928681972471902
  39. Margo Thelander, MS, CGCWalnut Creek, CA 945981316978216
  40. Amy Thomas, MSSan Diego, CA 921201942283999
  41. Ellen Thomas, MS, CGCSan Carlos, CA 940701285618694
  42. Carmela Thompson, LCGCSan Francisco, CA 941221184964850
  43. Deborah Thurn Valsassina, MS, CGC, LGCSan Diego, CA 921211598079071
  44. Jenna TidwellOakland, CA 946111285187435
  45. Jean TirchMenlo Park, CA 940251356685846
  46. Barry Tong, MS, MPH, LCGCSan Francisco, CA 941431730616541
  47. Chelsey Torres, MS, CGCNewport Beach, CA 926631164902441
  48. Luis Torres, MS, CGCLos Angeles, CA 900951558103655
  49. Leena Tran, LCGCWest Hollywood, CA 900481922720903
  50. Melissa Trant, MSLos Angeles, CA 900661346373677

Source: CMS NPPES, primary taxonomy 170300000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 16 of 51 per resident

  1. Maryland2.6
  2. Colorado2.6
  3. Connecticut2.6
  4. California2.4
  5. Nebraska2.2
  6. Illinois2.2
  7. 50 states and D.C.2.0

Source: CMS NPPES, primary taxonomy 170300000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against under 0.1% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California0.0%
  2. United States0.0%

Genetic Counselor (M.S.) records in California, measured

  • In a Medicare file0 of 942 · 0.0% here, under 0.1% nationally
  • In the CMS Doctors and Clinicians file3 · 0.3% here, 0.5% nationally
  • Not updated in five years or more579 · 61.5% here, 52.2% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 170300000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

942 NPPES records list genetic counselor (m.s.) (170300000X) as their primary taxonomy with a practice address in California: 2.4 per 100,000 residents against 2 nationally (50 states and D.C.). Los Angeles has 161 of them (17%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Pennsylvania432
  2. New York398
  3. Texas344
  4. Ohio340

States with a similar rate per 100,000

  1. Connecticut2.6
  2. Colorado2.6
  3. Nebraska2.2
  4. Maryland2.6

The largest states

  1. Pennsylvania432
  2. New York398
  3. Texas344
  4. Ohio340
  5. Massachusetts277

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.