Cheryl Costin, PTA
Cheryl Costin, PTA is a Physical Therapy Assistant in Mount Airy, MD, registered under NPI 1003568007.
Getting there
Here is what surrounds this office in Mount Airy, based on OpenStreetMap data collected Oct 7, 2026. Parking is available about 0.24 mi away. A pharmacy sits 0.22 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.29 mi away.
Getting here and what is nearby
Restaurant Dunkin' 237 ft ~1 min
1401 South Main Street, Mount Airy 21771
Mo-Sa 04:00-21:00; Su 05:00-21:00
Restaurant Mount Airy Inn 294 ft ~2 min
Su 07:00-21:00; Mo-We 08:00-21:00; Th 07:00-21:00; Fr,Sa 07:00-22:00
Parking 548 ft ~3 min
Parking 663 ft ~3 min
Grocery Food Lion 684 ft ~3 min
Restaurant The Green Turtle 1,002 ft ~4 min
1604 Ridgeside Drive, Mount Airy 21771
Convenience High's 0.21 mi ~5 min
109 Ridgeside Court, Mount Airy 21771
Gas station High's 0.21 mi ~5 min
Convenience 7-Eleven 0.22 mi ~5 min
Pharmacy Walgreens 0.22 mi ~5 min
415 East Ridgeville Boulevard, Mount Airy 21771
Mo-Su 09:00-21:00
Grocery Safeway 0.22 mi ~5 min
337 East Ridgeville Boulevard, Mount Airy 21771
Mo-Su 06:00-23:00
Gas station 7-Eleven 0.23 mi ~5 min
Parking 0.24 mi ~5 min
Coffee Starbucks 0.29 mi ~6 min
400 Ridgeville Boulevard, Mount Airy 21771
Mo-Fr 04:30-21:00; Sa,Su 05:00-21:00
Convenience Carroll Motor Fuels 0.35 mi ~7 min
502 East Ridgeville Boulevard, Mount Airy
Gas station Carroll Motor Fuels 0.36 mi ~8 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 |
|---|---|---|
| A2559 | MD | Physical Therapy Assistant primary |
This provider holds licence A2559 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Therapy Assistant covers
(1)Physical therapist assistants are skilled health care providers who are graduates of a physical therapist assistant associate degree program accredited by an agency recognized by the Secretary of the U.S. Department of Education or Council on Postsecondary Accreditation, who assists the physical therapist in providing physical therapy. The supervising physical therapist is directly responsible for the actions of the physical therapist assistant. The PTA performs physical therapy procedures and related tasks that have been selected and delegated by the supervising physical therapist. Duties of the PTA include assisting the physical therapist in implementing treatment programs, training patients in exercised and activities of daily living, conducting treatments, and reporting to the physical therapist on the patient's responses. In addition to direct patient care, the PTA may also perform such functions as patient transport, and clinic or equipment preparation and maintenance. Currently more than half of all states require PTAs to be licensed, registered or certified. (2) An individual who works under the supervision of a physical therapist to assist him or her in providing physical therapy services. A physical therapy assistant may, for instance, help patients follow an appropriate exercise program that will increase their strength, endurance, coordination, and range of motion and train patients to perform activities of daily life. NUCC Health Care Provider Taxonomy, code 225200000X
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 | 1003568007 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 20, 2022 |
| Last updated | Jan 20, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PTA |
| Practice address |
1311 S MAIN ST STE 301 Mount Airy, MD 21771 (301) 607-9096 Fax (301) 829-1320 |
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 | 6 | 8 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 6 | 7 | 0 | 0 |
Sum = 43 · next multiple of 10 = 50 · 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.