Joanie Garratt, MD
Joanie Garratt, MD is a Diagnostic Radiology Physician in Philadelphia, PA, registered under NPI 1003251828.
Getting there
Here is what surrounds this office in Philadelphia, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 0.35 mi away. The nearest transit stop is 0.43 mi away. A pharmacy sits 0.42 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Restaurant Dunkin' 0.22 mi ~5 min
3437 Walnut Street, Philadelphia 19104
Mo-Fr 05:00-19:00; Sa-Su 06:00-17:00
Restaurant Five Guys 0.22 mi ~5 min
3714 Spruce Street, Philadelphia 19104
11:00-21:30
Coffee Starbucks 0.23 mi ~5 min
3401 Walnut Street, Philadelphia 19104
Mo-Fr 05:30-20:00; Sa,Su 06:00-20:00
Pharmacy CVS Pharmacy 0.23 mi ~5 min
3401 Walnut Street, Philadelphia 19104
Mo-Fr 08:00-21:00; Sa,Su 08:30-18:00
Restaurant Goldie 0.23 mi ~5 min
3401 Walnut Street, Philadelphia 19104
Mo-Fr 11:00-20:00; Sa 11:00-19:00; Su 11:00-17:00
Coffee Avril 50 0.26 mi ~6 min
3406 Sansom Street, Philadelphia 19104
Mo-Fr 07:30-18:00; Sa 10:00-17:00
Hotel Hilton Inn at Penn 0.26 mi ~6 min
Convenience Wawa 0.27 mi ~6 min
Parking 3600 Civic Center Boulevard Garage 0.29 mi ~6 min
3600 Civic Center Boulevard, Philadelphia 19104
Coffee Haraz Coffee House 0.33 mi ~7 min
3421 Chestnut Street, Philadelphia 19104
Su-Th 06:30-22:00; Fr-Sa 06:30-23:00
Parking 0.34 mi ~7 min
Hotel Sheraton Philadelphia University City Hotel 0.35 mi ~7 min
Parking 0.35 mi ~8 min
Ludlow Street, Philadelphia 19104
Grocery Giant 0.36 mi ~8 min
3401 Chestnut Street, Philadelphia 19104
07:00-22:00
Convenience 7-Eleven 0.41 mi ~9 min
Convenience Old Nelson 0.42 mi ~9 min
Pharmacy Walgreens 0.42 mi ~9 min
Transit 0.43 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 |
|---|---|---|
| MD463400 | PA | Diagnostic Radiology Physician primary |
This provider holds licence MD463400 issued in PA. 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 - Diagnostic Radiology
- PAC ID
- 8426280181
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Pennsylvania | I20180423002478 | Practitioner - Diagnostic Radiology |
| New Jersey | I20190703000009 | Practitioner - Diagnostic Radiology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Diagnostic Radiology. There are 2 separate enrolment records across 2 states (PA, NJ). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 Diagnostic Radiology covers
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease. NUCC Health Care Provider Taxonomy, code 2085R0202X
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 | 1003251828 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 7, 2013 |
| Last updated | May 2, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
3400 SPRUCE ST Philadelphia, PA 19104 (215) 662-3000 Fax (215) 662-7011 |
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 | 2 | 5 | 1 | 8 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 2 | 8 | 4 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.