Doctor profile · Federal record

Dr. Dorothy Mandel, Psychology License

Adult Development & Aging Psychologist (CMS: Clinical Psychologist) · Addiction (Substance Use Disorder) Psychologist · Cognitive & Behavioral Psychologist · Clinical Psychologist · Counseling Psychologist · Clinical Child & Adolescent Psychologist · Family Psychologist · Health Psychologist · Intellectual & Developmental Disabilities Psychologist · Santa Rosa, CA

  • NPI 1679882880
  • 19 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1144 Sonoma Ave, Ste 117
Santa Rosa, CA 954054812
(707) 322-3222
fax (707) 526-1913

Credentials & registration

NPPES · NUCC
NPI registered
October 2010 — 16 yrs on file
Profile last updated
February 20, 2020
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
103TA0700X — NUCC code
State license (1)
California #PSY23697

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679882880. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
594
Distinct HCPCS
2
Medicare allowed
$92,187
HCPCS Description Services Patients Avg allowed
90837 Psychotherapy, 1 hour 573 36 $154
90791 Psychiatric diagnostic evaluation 21 21 $184

In context: peer comparison

Among 1 peers in Santa Rosa Adult Development & Aging Psychologist, average services per provider: 297. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Dorothy Mandel's medical specialty?
Dr. Dorothy Mandel practices Adult Development & Aging Psychologist in Santa Rosa, CA.
Where does Dr. Dorothy Mandel practice?
Dr. Dorothy Mandel practices at 1144 Sonoma Ave, Santa Rosa, CA 954054812. Office phone: 7073223222.
What is Dr. Dorothy Mandel's NPI?
Dr. Dorothy Mandel's National Provider Identifier (NPI) is 1679882880, issued by NPPES.
Does Dr. Dorothy Mandel accept Medicare assignment?
Dr. Dorothy Mandel does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Dorothy Mandel commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.