ATI HOLDING LLC
ATI HOLDING LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003391806, based in Forest Hill, MD. The organization lists 2 taxonomy classifications, with Physical Therapist recorded as primary.
Getting there
Here is what surrounds this office in Forest Hill, based on OpenStreetMap data collected Sep 23, 2026. Parking is available about 0.22 mi away at Bel Air Marywood Park & Ride. The nearest transit stop is 0.27 mi away, served by Marywood Park & Ride. A pharmacy sits 751 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.22 mi away.
Getting here and what is nearby
Restaurant Silver Palace Express 34 ft ~1 min
1510 Rock Spring Road, Forest Hill 21050
Mo-Sa 11:00-21:00; Su 12:00-21:00
Convenience Shell Select 158 ft ~1 min
Gas station Shell 157 ft ~1 min
Parking 342 ft ~2 min
Parking 370 ft ~2 min
Restaurant McDonald's 477 ft ~2 min
Convenience Carroll Mart 520 ft ~2 min
Gas station Carroll Motor Fuels 505 ft ~2 min
Restaurant Little Caesars 536 ft ~3 min
5 Red Pump Road, Bel Air 21014
Mo-Th,Su 11:00-22:00; Fr-Sa 11:00-23:00
Pharmacy CVS Pharmacy 751 ft ~3 min
1519 Rock Spring Road, Forest Hill 21050
Mo-Fr 09:00-21:00; Sa 09:00-18:00; Su 10:00-18:00
Convenience Royal Farms 848 ft ~4 min
Gas station Royal Farms 846 ft ~4 min
PH,Mo-Su 00:00-24:00
Coffee Starbucks 0.22 mi ~5 min
1538 Rock Spring Road, Forest Hill 21050
Mo-Th 06:00-20:00; Fr-Su 06:00-20:30
Parking Bel Air Marywood Park & Ride 0.22 mi ~5 min
1400 Rock Spring Road, Bel Air 21014
Grocery Giant 0.23 mi ~5 min
1401 Rock Spring Road, Bel Air 21014
Mo-Sa 06:00-23:00; Su 06:00-22:00
Transit Marywood Park & Ride 0.27 mi ~6 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.
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 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
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 | |
|---|---|---|---|---|
| 225100000X | Physical Therapist | — | — | primary |
| 225X00000X | Occupational Therapist | — | — |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003391806 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 27, 2018 |
| Last updated | Sep 27, 2018 |
| Status | Active |
| Practice address |
1510 ROCK SPRING RD Forest Hill, MD 21050 (410) 420-3619 |
| Mailing address |
790 REMINGTON BLVD Bolingbrook, IL 60440 |
| Other names |
Ati Physical Therapy Former Legal Name |
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 | 9 | 1 | 8 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 9 | 2 | 8 | 0 |
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.