John Krayenhagen, OTR
John Krayenhagen, OTR is an Occupational Therapist in Milwaukee, WI, registered under NPI 1003593112. 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 Milwaukee, based on OpenStreetMap data collected Oct 9, 2026. Parking is available about 532 ft away. There is EV charging 843 ft from the office — useful if you are driving in from out of town. The nearest transit stop is 994 ft away, served by Van Buren & Pleasant. A pharmacy sits 0.47 mi from the entrance (Metro Market Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 904 ft away.
Getting here and what is nearby
Grocery Fresh Thyme 242 ft ~1 min
470 East Pleasant Street, Milwaukee 53202
07:00-22:00
Transit Water & Pleasant 319 ft ~2 min
Parking Ogden Parking 341 ft ~2 min
1675 North Water Street, Milwaukee 53202
Restaurant Birch 294 ft ~2 min
459 East Pleasant Street, Milwaukee 53202
Mo-Th 16:00-21:00; Fr 16:00-22:00; Sa 17:00-22:00
Transit Water & Pleasant 450 ft ~2 min
Coffee Alderaan Coffee 477 ft ~2 min
1560 North Water Street, Milwaukee 53202
Mo-Fr 06:00-18:00; Sa-Su 07:00-18:00
Parking 456 ft ~2 min
1610 North Water Street, Milwaukee 53202
Parking 532 ft ~3 min
1623 North Jackson Street, Milwaukee 53202
Restaurant Sanford 703 ft ~3 min
1547 North Jackson Street, Milwaukee 53202
Mo-Th 17:30-21:00; Fr 17:30-22:00; Sa 17:00-22:00
Coffee Interval 758 ft ~3 min
1600 North Jackson Street, Milwaukee 53202
Su-Th 07:00-19:00; Fr-Sa 07:00-22:00
EV charging 843 ft ~4 min
Coffee Davian's Schlitz Park Café 904 ft ~4 min
1555 North Rivercenter Drive, Milwaukee 53212
Mo-Fr 07:00-15:00
Restaurant Uncle Wolfie's Breakfast Tavern 927 ft ~4 min
Mo-Th 08:00-14:00; Fr 08:00-14:00, 17:00-21:00; Sa 08:00-15:00, 17:00-21:00; Su 08:00-15:00
Transit Van Buren & Pleasant 994 ft ~4 min
Grocery Pick 'n Save 0.24 mi ~5 min
Hotel The Carriage House in Sanger House Gardens 0.25 mi ~5 min
Convenience Pueblo Foods & Liquor 0.39 mi ~8 min
Convenience Juba Food Market 0.40 mi ~9 min
1745 North Doctor Martin Luther King Junior Drive, Milwaukee 53212
Grocery Glorioso's Italian Market 0.40 mi ~8 min
1011 East Brady Street, Milwaukee 53202
Mo-Fr 08:00-20:00; Sa 08:00-18:00; Su 08:30-17:00
Pharmacy Metro Market Pharmacy 0.47 mi ~10 min
Mo-Fr 09:00-20:00; Sa 09:00-18:00; Su 10:00-17:00
Hotel The Astor Hotel 0.51 mi ~11 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 |
|---|---|---|
| 8316-26 | WI | Occupational Therapist primary |
This provider holds licence 8316-26 issued in WI. 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 Occupational Therapist covers
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life. NUCC Health Care Provider Taxonomy, code 225X00000X
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 | 1003593112 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 29, 2023 |
| Last updated | Jun 29, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | OTR |
| Practice address |
1635 N WATER ST APT 312 Milwaukee, WI 53202 (563) 650-2889 |
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 | 9 | 3 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 9 | 6 | 1 | 2 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.