Irwin Singer, M.D.
Irwin Singer, M.D. is a Nephrology Physician in Miami, FL, registered under NPI 1003077298. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Miami, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 0.30 mi away at North Parking Garage. The nearest transit stop is 689 ft away, served by Northwest 14th Avenue & Northwest 19th Street. A pharmacy sits 0.33 mi from the entrance (Ambulatory Care Center (ACC) Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.38 mi away.
Getting here and what is nearby
Transit Northwest 14th Avenue & Northwest 19th Street 640 ft ~3 min
Parking 625 ft ~3 min
Transit Northwest 12th Avenue & Northwest 19th Street 672 ft ~3 min
Transit Northwest 14th Avenue & Northwest 19th Street 689 ft ~3 min
Parking 0.21 mi ~5 min
Restaurant Burger King 0.21 mi ~5 min
1309 Northwest 20th Street, Miami 33142-7721
Mo-Sa 06:00-22:00; Su 06:00-20:00
Parking North Parking Garage 0.30 mi ~7 min
Pharmacy Ambulatory Care Center (ACC) Pharmacy 0.33 mi ~7 min
1611 Northwest 12th Avenue, Miami 33136
Mo-Fr 08:00-20:00; Sa-Su 08:00-16:00
Restaurant Popeyes 0.33 mi ~7 min
1501 Northwest 20th Street, Miami 33142
Mo-Su 10:00-23:00
Restaurant Hometown Barbecue 0.36 mi ~8 min
1200 Northwest 22nd Street, Miami 33142
Su-Th 11:30-21:00; Fr-Sa 11:30-22:00
Coffee Starbucks 0.38 mi ~8 min
Convenience On the Run 0.38 mi ~8 min
Gas station On the Run 0.39 mi ~8 min
Gas station On the Run 0.40 mi ~8 min
Convenience Shell 0.44 mi ~9 min
Gas station Shell 0.44 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 |
|---|---|---|
| MD012231E | PA | Internal Medicine Physician |
| 036.072704 | IL | Nephrology Physician primary |
Licences are recorded in 2 states: PA, IL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 2 states
This provider holds licences in 2 states: Illinois and Pennsylvania. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Nephrology covers
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation. NUCC Health Care Provider Taxonomy, code 207RN0300X
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 | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | MD012231E | PA | |
| 207RN0300X | Nephrology Physician Nephrology | 036.072704 | IL | primary |
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 | 1003077298 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 19, 2008 |
| Last updated | Jun 19, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | M.D. |
| Practice address |
1201 NW 16TH ST Miami, FL 33125 (305) 575-3160 |
| Mailing address |
315 VIZCAYA DR Palm Beach Gardens, FL 33418 |
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 | 0 | 7 | 7 | 2 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 7 | 5 | 2 | 9 |
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.