Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Krysta Williams, NP

Individual provider Family Nurse Practitioner · NPI 1962184291

Krysta Williams, NP is a Nurse Practitioner in Petaluma, California. Qualified in 2023, 3 years ago. Practices with Noel Serrano MD PC, an 8-clinician group, works from 18 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2023
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

1179 N McDowell Blvd
Petaluma, CA 94954-6559
Phone: (707) 559-7500
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (17)

  • 300 Cherry Creek Rd, Cloverdale, CA 95425-3811 — (707) 535-9279
  • 705 Trancas St, Napa, CA 94558-3014 — (707) 535-9279
  • 3275 Villa Ln, Napa, CA 94558-3016 — (707) 535-9279
  • 450 Hayes Ln, Petaluma, CA 94952-4010 — (707) 535-9279
  • 300 Douglas St, Petaluma, CA 94952-2503 — (707) 535-9279
  • 523 Hayes Ln, Petaluma, CA 94952-4011 — (707) 535-9279
  • 40 Professional Center Pkwy, San Rafael, CA 94903-2703 — (707) 535-9279
  • 45 Professional Center Pkwy, San Rafael, CA 94903-2702 — (707) 535-9279
  • 850 Sonoma Ave, Santa Rosa, CA 95404-4715 — (707) 535-9279
  • 446 Arrowood Dr, Santa Rosa, CA 95407-7503 — (707) 535-9279
  • 300 Fountaingrove Pkwy, Santa Rosa, CA 95403-5720 — (707) 535-9279
  • 1035 Hwy 116 S, Sebastopol, CA 95472-4865 — (707) 535-9279
  • 1250 Broadway, Sonoma, CA 95476-7500 — (707) 535-9279
  • 347 Andrieux St, Sonoma, CA 95476-6811 — (707) 535-9279
  • 260 Hospital Dr, Ukiah, CA 95482-4568 — (707) 535-9279
  • 1527 Springs Rd, Vallejo, CA 94591-5448 — (707) 535-9279
  • 1044 Heartwood Ave, Vallejo, CA 94591-5637 — (707) 535-9279

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95026245 (CA)

Record details

NPI number1962184291
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 4, 2023
Last updated in NPPESJanuary 27, 2026
Certification dateJanuary 27, 2026
Mailing addressPo Box 16309, Jacksonville, FL 32245-6309

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Noel Serrano Md Pc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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