William Hartmann
William Hartmann is a provider specialising in Student in an Organized Health Care Education/Training Program in Ann Arbor, MI, registered under NPI 1003197096. 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 Ann Arbor, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 0.30 mi away at U of M Lot N15 Service Center Parking. There is EV charging 0.33 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 692 ft away, served by Shapiro Library. A pharmacy sits 0.39 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 458 ft away.
Getting here and what is nearby
Transit W - Church north of South U 141 ft ~1 min
Restaurant Joe's Pizza 235 ft ~1 min
Th-Sa 11:00-03:00, Su 00:00-00:00, Mo 11:00-24:00, Tu,We 11:00-02:00
Coffee M-36 Coffee Roasters 259 ft ~1 min
1101 South University Avenue, Ann Arbor 48104
Mo-Fr 06:30-20:00, Fr,Sa 07:00-20:00
Restaurant Raising Cane's 332 ft ~2 min
1116 South University Avenue, Ann Arbor 48104
Su-We 10:00-02:00, Th-Sa 10:00-03:00
Restaurant Cantina 351 ft ~2 min
1140 South University Avenue
Tu,We 18:00-01:00, Th-Sa 18:00-02:00
Coffee Starbucks 438 ft ~2 min
Coffee Misfit Society Coffee Club 458 ft ~2 min
611 East University Avenue
Transit 632 ft ~3 min
Convenience Replenish 618 ft ~3 min
Mo-Fr 09:00-20:00
Transit Shapiro Library 692 ft ~3 min
Convenience 7-Eleven 757 ft ~3 min
Parking Forest Avenue Parking Structure 733 ft ~3 min
650 South Forest Avenue, Ann Arbor 48104
Convenience Strickland's Market 0.22 mi ~5 min
1352 Geddes Avenue
Parking U of M Lot N16 Service Center 0.27 mi ~6 min
1102 Palmer Drive
Parking U of M Lot N15 Service Center Parking 0.30 mi ~7 min
203 Fletcher Street
EV charging 0.33 mi ~7 min
Hotel Bell Tower Hotel 0.34 mi ~7 min
Pharmacy Walgreens 0.34 mi ~7 min
317 South State Street, Ann Arbor 48104
Mo-Fr 08:00-13:30,14:00-22:00; Sa 9:00-13:30,14:00-18:00; Su 10:00-13:30,14:00-18:00
Grocery Target Grocery 0.37 mi ~8 min
231 South State Street, Ann Arbor 48104
Mo-Fr 07:00-21:00; Sa-Su 08:00-21:00
Pharmacy CVS Pharmacy 0.39 mi ~8 min
Hotel Ann Arbor Bed and Breakfast 0.42 mi ~9 min
Hotel Library Bed and Breakfast 0.45 mi ~10 min
808 Mary Street
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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003197096 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 2, 2011 |
| Last updated | Sep 6, 2011 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
530 CHURCH ST Ann Arbor, MI 48109 (734) 615-7853 |
| Mailing address |
814 JONES DR Ann Arbor, MI 48105 |
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 | 1 | 9 | 7 | 0 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 9 | 5 | 0 | 9 |
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.