Marlowe Dieckmann
Marlowe Dieckmann is a Family Medicine Physician in Grass Valley, CA, registered under NPI 1003304536.
Getting there
Here is what surrounds this office in Grass Valley, based on OpenStreetMap data collected Sep 17, 2026. Parking is available about 471 ft away. There is EV charging 0.35 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 0.45 mi away. If you arrive early, there is a coffee shop 282 ft away.
Getting here and what is nearby
Hotel Holiday Lodge 191 ft ~1 min
Parking 185 ft ~1 min
Parking 229 ft ~1 min
Coffee Durga's Divine Café 282 ft ~2 min
Restaurant Pine Street Burgers 305 ft ~2 min
1249 East Main Street, Grass Valley 95945
Mo-Su 11:00-20:00
Parking 471 ft ~2 min
Gas station Shell 0.31 mi ~7 min
Gas station Quik Stop 0.33 mi ~7 min
EV charging 0.35 mi ~8 min
Grocery BriarPatch Food Co-Op 0.37 mi ~8 min
290 Sierra College Drive, Grass Valley 95945
07:00-22:00
Transit 0.40 mi ~8 min
Transit 0.45 mi ~9 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 |
|---|---|---|
| A157293 | CA | Family Medicine Physician primary |
This provider holds licence A157293 issued in CA. 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 - Family Practice
- PAC ID
- 1456604800
- Enrollment ID
- I20201013001531
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003304536 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 30, 2018 |
| Last updated | Sep 2, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
1350 E MAIN ST Grass Valley, CA 95945 (530) 477-8545 |
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 | 3 | 0 | 4 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 0 | 8 | 5 | 6 |
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.