Katarina Vamvouris, PSY.D
Katarina Vamvouris, PSY.D is a Psychologist in Davis, CA, registered under NPI 1003466533.
Getting there
Here is what surrounds this office in Davis, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 0.44 mi away at Quad Parking Structure. There is EV charging 0.48 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 830 ft away, served by 2nd St & B St (EB). If you arrive early, there is a coffee shop 255 ft away.
Getting here and what is nearby
Restaurant Raising Cane's 0.00 mi ~1 min
207 E Street, 95616
Restaurant Raising Cane's 22 ft ~1 min
207 E Street, Davis 95616
Coffee Philz Coffee 44 ft ~1 min
Parking 53 ft ~1 min
Transit 2nd St & E St / Downtown (EB) 105 ft ~1 min
Transit 2nd St & E St / Downtown (WB) 113 ft ~1 min
Convenience Myu Myu 87 ft ~1 min
204 E Street, 95616
Restaurant Nick the Greek 93 ft ~1 min
206 E Street, 95616
Coffee Tea List 236 ft ~1 min
222 D Street, Davis 95616
Tu-Th 10:30-17:30; Fr-Sa 10:00-18:00; Su 11:00-17:00
Coffee Mishka's Cafe 255 ft ~1 min
610 2nd Street, Davis 95616
Hotel The Vine Inn Davis 406 ft ~2 min
221 D Street, Davis 95616
Parking 500 ft ~2 min
101 F Street, Davis 95616
Hotel Hallmark Inn at UC Davis 630 ft ~3 min
110 F Street, Davis 95616
Hotel Hallmark Inn at UC Davis 637 ft ~3 min
110 F Street, Davis 95616
EV charging Electrify America 801 ft ~4 min
Transit 2nd St & B St (EB) 830 ft ~4 min
Gas station Shell 0.25 mi ~6 min
EV charging 0.37 mi ~8 min
Grocery Davis Food Cooperative 0.43 mi ~9 min
Parking Quad Parking Structure 0.44 mi ~9 min
400 Howard Way, Davis 95616
EV charging 0.48 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 34757 | CA | Psychologist primary |
This provider holds licence 34757 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Psychologist covers
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public. NUCC Health Care Provider Taxonomy, code 103T00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003466533 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 17, 2019 |
| Last updated | Feb 19, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PSY.D |
| Practice address |
207 E ST STE B Davis, CA 95616 (530) 206-9996 |
| Mailing address |
3835 N FREEWAY BLVD STE 100 Sacramento, CA 95834 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 6 | 6 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 6 | 3 | 5 | 6 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.