Alexis Ahern
Alexis Ahern is a Physical Therapist in New York, NY, registered under NPI 1003554437. 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 New York, based on OpenStreetMap data collected Sep 21, 2026. Parking is available about 0.25 mi away at Centerpark East 39th Street Parking Garage. There is EV charging 0.46 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 445 ft away, served by East 24th Street & Park Avenue. A pharmacy sits 931 ft from the entrance (Duane Reade), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 309 ft away.
Getting here and what is nearby
Coffee Café Grumpy 119 ft ~1 min
89 East 42nd Street, New York 10017
Mo-Fr 06:00-20:00; Sa, Su 07:00-20:00
Coffee Starbucks 165 ft ~1 min
Hotel Grand Hyatt New York 218 ft ~1 min
Restaurant Pret A Manger 185 ft ~1 min
Transit Lexington Avenue & East 45th Street 316 ft ~2 min
Coffee WatchHouse 309 ft ~2 min
405 Lexington Avenue, 10174
Mo-Fr 07:00-18:00; Sa-Su 08:00-17:00
Transit East 42nd Street & Lexington Avenue 372 ft ~2 min
Convenience Amazon Go 350 ft ~2 min
Hotel Fitzpatrick Grand Central Hotel 365 ft ~2 min
Transit East 24th Street & Park Avenue 445 ft ~2 min
Restaurant Potbelly 415 ft ~2 min
150 East 44th Street, 10017
Mo-Fr 09:00-22:00; Sa-Su 10:00-17:00
Restaurant Juice Generation 427 ft ~2 min
Mo-Fr 07:00-20:00; Sa,Su 08:00-16:00
Hotel Club Quarters Hotel 449 ft ~2 min
Convenience 129 Gourmet Deli 512 ft ~2 min
129 East 45th Street, 10017
Convenience Lotto & Smoke Shop 525 ft ~2 min
153 East 43rd Street, 10017
Pharmacy CVS Pharmacy 707 ft ~3 min
Pharmacy Duane Reade 719 ft ~3 min
Pharmacy Duane Reade 931 ft ~4 min
EV charging Tesla Supercharger 0.22 mi ~5 min
Parking Centerpark East 46th Street Parking Garage 0.22 mi ~5 min
Parking Centerpark East 47th Street Parking Garage 0.23 mi ~5 min
Grocery Amish Market East 0.23 mi ~5 min
240 East 45th Street, New York 10017
Mo-Fr 07:00-21:30; Sa,Su 08:00-21:30
Parking Centerpark East 39th Street Parking Garage 0.25 mi ~6 min
Grocery Ermina's 0.25 mi ~5 min
833 2nd Avenue, New York 10017
Grocery Sunrise Mart 0.26 mi ~6 min
EV charging ChargePoint 0.37 mi ~8 min
EV charging ChargePoint 0.46 mi ~10 min
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.
- Status
- Approved
- Provider type
- Practitioner - Physical Therapist In Private Practice
- PAC ID
- 4789069196
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| New York | I20220921003255 | Practitioner - Physical Therapist In Private Practice |
| Florida | I20230301002640 | Practitioner - Physical Therapist In Private Practice |
Medicare enrolment is recorded as approved under the provider type Practitioner - Physical Therapist In Private Practice. There are 2 separate enrolment records across 2 states (NY, FL). 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 Physical Therapist covers
Physical therapists (PTs) are licensed health care professionals who diagnose and treat individuals of all ages, from newborns to the very oldest, who have medical problems or other health-related conditions that limit their abilities to move and perform functional activities in their daily lives. PTs examine each individual and develop a plan using treatment techniques to promote the ability to move, reduce pain, restore function, and prevent disability. In addition, PTs work with individuals to prevent the loss of mobility before it occurs by developing fitness- and wellness-oriented programs for healthier and more active lifestyles. PTs: 1.Diagnose and manage movement dysfunction and enhance physical and functional abilities. 2.Restore, maintain, and promote not only optimal physical function but optimal wellness and fitness and optimal quality of life as it relates to movement and health. 3.Prevent the onset, symptoms, and progression of impairments, functional limitations, and disabilities that may result from diseases, disorders, conditions, or injuries. 4.Treat conditions of the musculoskeletal, neuromuscular, cardiovascular, pulmonary, and/or integumentary systems. 5.Address the negative effects attributable to unique personal and environmental factors as they relate to human performance. 6.PTs provide care for people in a variety of settings, including hospitals, private practices, outpatient clinics, home health agencies, schools, sports and fitness facilities, work settings, and nursing homes. State licensure is required in each state in which a PT practices. NUCC Health Care Provider Taxonomy, code 225100000X
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 | 1003554437 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 25, 2022 |
| Last updated | May 25, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
420 LEXINGTON AVE New York, NY 10170 (212) 973-0655 Fax (212) 973-0656 |
| Mailing address |
576 BROADHOLLOW RD Melville, NY 11747 |
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 | 5 | 4 | 4 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 8 | 4 | 6 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.