Ryan Partnoff, D.D.S.
Ryan Partnoff, D.D.S. is a provider specialising in Dentist in Pasadena, CA, registered under NPI 1003003641.
Getting there
Here is what surrounds this office in Pasadena, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 0.31 mi away. There is EV charging 0.47 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 262 ft away, served by Colorado / Los Robles. A pharmacy sits 0.40 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 690 ft away.
Getting here and what is nearby
Transit Los Robles & Colorado 104 ft ~1 min
Coffee Hello You're Welcome 145 ft ~1 min
Restaurant Ginger and Spice 159 ft ~1 min
451 East Colorado Boulevard, Pasadena 91101
Mo-Sa 10:30-20:55; Su off
Transit Colorado / Los Robles 245 ft ~1 min
Transit Colorado / Los Robles 262 ft ~1 min
Restaurant California Pizza Kitchen 434 ft ~2 min
Restaurant Ruth's Chris Steak House 445 ft ~2 min
369 East Colorado Boulevard, Pasadena 91101
Mo-Th 16:00-22:00; Fr-Sa 16:00-22:30; Su 16:00-21:00
Convenience Daily Needs 589 ft ~3 min
300 East Colorado Boulevard, Pasadena 91101
Mo-Sa 11:00-20:00; Su 11:00-18:00
Hotel Hyatt Place Pasadena 561 ft ~3 min
Coffee Starbucks 617 ft ~3 min
300 East Colorado Boulevard, Pasadena 91101
05:00-21:00
Coffee Europane Bakery & Cafe 690 ft ~3 min
345 East Colorado Boulevard, Pasadena 91101
07:00-14:00
Parking 876 ft ~4 min
40 South Oakland Avenue
Hotel Westin Pasadena 963 ft ~4 min
191 North Los Robles Avenue
Gas station Arco 0.23 mi ~5 min
Convenience ampm 0.24 mi ~5 min
445 East Walnut Street
Hotel Hilton 0.26 mi ~6 min
168 South Los Robles Avenue, Pasadena 91101
Parking 0.29 mi ~6 min
245 Ramona Street
Parking 0.31 mi ~7 min
177 East Colorado Boulevard
EV charging Tesla Supercharger 0.32 mi ~7 min
Pharmacy CVS Pharmacy 0.40 mi ~9 min
777 East Colorado Boulevard, Pasadena 91101
Mo-Fr 10:00-20:00; Sa 10:00-18:00; Su 11:00-17:00
EV charging 0.47 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 |
|---|---|---|
| 56425 | CA | Dentist primary |
This provider holds licence 56425 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 Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
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 | 1003003641 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 27, 2007 |
| Last updated | Sep 17, 2008 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | D.D.S. |
| Practice address |
30 N LOS ROBLES AVE Pasadena, CA 91101 (626) 796-0300 |
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 | 0 | 0 | 3 | 6 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 6 | 6 | 8 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.