RACHEL SIENKO LP LLC
RACHEL SIENKO LP LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003679853, based in Ann Arbor, MI. It is classified under Clinical Psychologist.
Getting there
Here is what surrounds this office in Ann Arbor, based on OpenStreetMap data collected Oct 14, 2026. Parking is available about 112 ft away. The nearest transit stop is 702 ft away, served by #64. If you arrive early, there is a coffee shop 908 ft away.
Getting here and what is nearby
Parking 61 ft ~1 min
Parking 87 ft ~1 min
Parking 112 ft ~1 min
Transit 253 ft ~1 min
Transit 265 ft ~2 min
Transit #64 702 ft ~3 min
Coffee Bearclaw Coffee Co. 908 ft ~4 min
Restaurant Pita King 972 ft ~4 min
2412 East Stadium Boulevard, Ann Arbor 48104
11:00-21:00
Grocery Trader Joe's 1,013 ft ~4 min
2398 East Stadium Boulevard, Ann Arbor 48104
Mo-Su 08:00-21:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003679853 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Feb 5, 2024 |
| Last updated | Feb 5, 2024 |
| Status | Active |
| Practice address |
2311 E STADIUM BLVD STE 212-3 Ann Arbor, MI 48104 (810) 279-0149 |
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 | 6 | 7 | 9 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 7 | 9 | 8 | 1 |
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.