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 11 of 19.

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

Los Angeles has the most, 161

Genetic Counselor (M.S.) records in California

  1. Kate Loranger, M.S., L.C.G.C.Walnut Creek, CA 945981972702918
  2. Janet Lorraine, MFTSanta Rosa, CA 954071013068550
  3. Cheri Loustalet, M.S.Los Angeles, CA 900661033254933
  4. Enas LouzyOrange, CA 928681740942143
  5. Elyse Love, M.S.Sacramento, CA 958171609141845
  6. Niki Lovick, LCGCSan Francisco, CA 941431093175697
  7. Katrina Lowstuter, MSLos Angeles, CA 900891962762138
  8. Ira Lu, M.S.Los Angeles, CA 900661548451388
  9. Caitlin LucineseMonrovia, CA 910161760904007
  10. Carlyne Ludington, M.S., C.G.C.Baldwin Park, CA 917061356554380
  11. Ann Ly, MSGCLoma Linda, CA 923541326810409
  12. Daria MaLos Angeles, CA 900661457573438
  13. Fion Ma, MS,CGCSan Francisco, CA 941151780556464
  14. Dolores Madden, C. G. C.Orange, CA 928681255466140
  15. Lisa Madlensky, PHD, MSCLa Jolla, CA 920931992935027
  16. Nikki MadsonModesto, CA 953561780818302
  17. Furyal Mahmood, MS, LCGCOakland, CA 946111376199836
  18. Ryan Mahoney, MSOrange, CA 928681851083984
  19. Savanie Maithripala, MSC LCGCSan Francisco, CA 941581326539529
  20. Bryan Mak, MMSC, CGCLos Angeles, CA 900481437805959
  21. Julie Mak, MS, MSCSan Francisco, CA 941431417935602
  22. Katherine Malabed, M.S., LGCSan Francisco, CA 941341760529853
  23. Susy Malca, MS, LCGCOrange, CA 928681093266322
  24. Haley Maloney, MSTorrance, CA 905021154180008
  25. Lisa Manahan, MS, LCGCSan Diego, CA 921211912830597
  26. Itzel Mancilla-Murillo, LCGCOrange, CA 928681992670095
  27. Nelliann ManclPalo Alto, CA 943041912683764
  28. Rachel Mangels, PHD, MS, LCGCPalo Alto, CA 943041447800537
  29. Justine ManigaultLos Angeles, CA 900641922970268
  30. Rachelle Manookian, MSLos Angeles, CA 900731932626512
  31. Nicole Mans, MS, LCGCSacramento, CA 958171215291315
  32. Lisa Mar, M.S.San Francisco, CA 941181144585498
  33. Jeanette Marino, MS, LCGCSunnyvale, CA 940861558138495
  34. Angelica Marquez, LCGCBurbank, CA 915051235089574
  35. Emily Marsh, MSMonrovia, CA 910161538681879
  36. Cameron Marshall, LCGC, MSSacramento, CA 958161346931300
  37. Brissa Martin, MSGardena, CA 902481972362044
  38. Ariadna MartinezLos Angeles, CA 900951356449441
  39. Johanna Martinezmoles, MSSacramento, CA 958151104801927
  40. Daniela MartiniucSan Carlos, CA 940701134571839
  41. Janine Mash, LCGCSan Francisco, CA 941151174958557
  42. James Massa, M.S.Clovis, CA 936111194920413
  43. Diane Masser-Frye, MS, MSWSan Diego, CA 921231437148319
  44. Claire Masterson, MSSanta Barbara, CA 931011902689482
  45. Ileana MattaSan Diego, CA 921211306728423
  46. Lauren Mattas, LCGCPalo Alto, CA 943051356749089
  47. Heather Maves, MSCosta Mesa, CA 926271376035626
  48. Megan Maxwell Lutz, M.S., L.C.G.C.Riverside, CA 925011699052126
  49. Ronit Mazzoni, MSSan Jose, CA 951251649722778
  50. Kelsey McClelland, MS, LCGCSan Francisco, CA 941581407226616

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.