Doctor profile · Federal record

Dr. David Tweedy, PH.D.

Clinical Psychologist · Adult Development & Aging Psychologist · Clinical Child & Adolescent Psychologist · Adult Development & Aging Psychologist · Carlsbad, CA

  • NPI 1336295500
  • Accepts Medicare
  • MIPS 0.0 / 100 · 2023
  • 35 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2945 Harding St., Suite 100
Carlsbad, CA 92008
(760) 434-3443
fax (760) 434-3684

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
February 22, 2011
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
103TC0700X — NUCC code
State license (1)
California #PSY16608

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1336295500. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,599
Distinct HCPCS
9
Medicare allowed
$160,086
HCPCS Description Services Patients Avg allowed
90832 Psychotherapy, 30 minutes 497 156 $68
90834 Psychotherapy, 45 minutes 429 188 $90
90791 Psychiatric diagnostic evaluation 347 328 $154
90785 Psychiatric services complicated by communication factor 87 82 $14
90837 Psychotherapy, 1 hour 82 20 $153
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 52 28 $123
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 45 40 $134
90834 Psychotherapy, 45 minutes 37 12 $104
90791 Psychiatric diagnostic evaluation 23 19 $182

In context: peer comparison

Among 4 peers in this city , average services per provider: 152. This provider delivers 11× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. David Tweedy's medical specialty?
Dr. David Tweedy practices Clinical Psychologist in Carlsbad, CA.
Where does Dr. David Tweedy practice?
Dr. David Tweedy practices at 2945 Harding St., Carlsbad, CA 92008. Office phone: 7604343443.
What is Dr. David Tweedy's NPI?
Dr. David Tweedy's National Provider Identifier (NPI) is 1336295500, issued by NPPES.
Does Dr. David Tweedy accept Medicare assignment?
Yes. Dr. David Tweedy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Tweedy commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90832); Psychotherapy (HCPCS 90834); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.