Yelena Blank, PHD
Yelena Blank, PHD is a Clinical Psychologist in Mountain View, CA, registered under NPI 1003335936. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Mountain View, based on OpenStreetMap data collected Sep 19, 2026. Parking is available about 0.50 mi away. There is EV charging 0.29 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 948 ft away, served by California Street & Bryant Street. A pharmacy sits 792 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 244 ft away.
Getting here and what is nearby
Coffee Tea Era 67 ft ~1 min
Restaurant Queen House 79 ft ~1 min
273 Castro Street
Mo,We,Th 11:00-15:00,17:00-21:00, Fr,Sa 11:00-15:00,17:00-24:00, Su 11:00-15:00,17:00-21:00; Tu off
Parking 176 ft ~1 min
Restaurant Ristorante Don Giovanni 135 ft ~1 min
235 Castro Street
Mo-Fr 11:00-14:30, 17:00-22:00; Sa, Su 11:00-22:00
Restaurant Bonchon Chicken 170 ft ~1 min
260 Castro Street, Mountain View
Mo 11:30-14:30, 17:00-21:00; We, Th 11:30-14:30, 17:00-22:00; Fr, Sa 11:30-22:30; Su 11:30-21:00
Coffee Dana Street Roasting Company 210 ft ~1 min
Convenience Easy Foods 198 ft ~1 min
Coffee Ume Tea 244 ft ~1 min
220 Castro Street, Mountain View
Mo-Th,Su 11:00-21:30; Fr-Sa 11:00-22:00
Transit Villa Street & Castro Street 370 ft ~2 min
Parking 355 ft ~2 min
Transit Villa Street & Franklin Street 796 ft ~4 min
Pharmacy CVS Pharmacy 792 ft ~4 min
Transit California Street & Bryant Street 948 ft ~4 min
EV charging ChargePoint 0.29 mi ~6 min
Hotel Hampton Inn & Suites 0.44 mi ~9 min
Parking 0.50 mi ~11 min
"Shopping time only"
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 |
|---|---|---|
| 28683 | CA | Clinical Psychologist primary |
This provider holds licence 28683 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 Clinical covers
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems. NUCC Health Care Provider Taxonomy, code 103TC0700X
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 | 1003335936 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 12, 2017 |
| Last updated | May 12, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PHD |
| Practice address |
257 CASTRO ST STE 208 Mountain View, CA 94041 (416) 758-1335 |
| Other names |
Elaine Blank Other Name |
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 | 3 | 3 | 5 | 9 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 3 | 1 | 9 | 6 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.