Karen Sumey, LCSW
Karen Sumey, LCSW is a provider specialising in Clinical Social Worker in Boulder, CO, registered under NPI 1003579533. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Boulder, based on OpenStreetMap data collected Oct 8, 2026. Parking is available about 543 ft away. The nearest transit stop is 732 ft away, served by Arapahoe Ave & Commerce St. If you arrive early, there is a coffee shop 0.34 mi away.
Getting here and what is nearby
Parking 278 ft ~2 min
Parking 412 ft ~2 min
1795 48th Court, Boulder 80301
Parking 543 ft ~3 min
Transit Arapahoe Ave & 48th St 623 ft ~3 min
Transit Arapahoe Ave & 48th St 626 ft ~3 min
Transit Arapahoe Ave & Commerce St 732 ft ~3 min
Restaurant Sherpa Kitchen 0.29 mi ~6 min
Coffee Ozo Coffee Roasters 0.34 mi ~7 min
5340 Arapahoe Avenue, Boulder 80303
Mo-Sa 06:00-18:00; Su 07:00-17:00
Restaurant Snarf's 0.35 mi ~8 min
Restaurant Blackbelly Market 0.38 mi ~8 min
1606 Conestoga Street, Boulder 80301
Convenience Shortstop Arapahoe 0.47 mi ~10 min
Gas station Shell 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 |
|---|---|---|
| CSW.09925673 | CO | Clinical Social Worker primary |
| CSW.09925673 | CO | Mental Health Counselor |
This provider holds licence CSW.09925673 issued in CO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Clinical Social Worker
- PAC ID
- 8325434400
- Enrollment ID
- I20220330001416
Medicare enrolment is recorded as approved under the provider type Practitioner - Clinical Social Worker. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Clinical covers
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 1041C0700X | Clinical Social Worker Clinical | CSW.09925673 | CO | primary |
| 101YM0800X | Mental Health Counselor Mental Health | CSW.09925673 | CO |
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 | 1003579533 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 21, 2021 |
| Last updated | Oct 2, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | LCSW |
| Practice address |
4801 RIVERBEND RD Boulder, CO 80301 (303) 415-4299 |
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 | 5 | 7 | 9 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 7 | 9 | 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.