Rosalie Leininger, CEIS
Rosalie Leininger, CEIS is a Developmental Therapist in Somerville, MA, registered under NPI 1003290131.
Getting there
Here is what surrounds this office in Somerville, based on OpenStreetMap data collected Sep 16, 2026. Parking is available about 635 ft away. There is EV charging 0.40 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 699 ft away, served by Somerville Ave opp Central St. A pharmacy sits 0.50 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Restaurant Mimi's Chūka Diner 58 ft ~1 min
14 Tyler Street, Somerville 02143
Tu-Th 17:00-22:00; Fr 17:00-23:00; Sa 12:00-23:00
Parking 211 ft ~1 min
Parking 459 ft ~2 min
Pharmacy Walgreens 506 ft ~2 min
Mo-Fr 09:00-19:00; Sa 09:00-18:00
Transit Somerville Ave opp Loring St 605 ft ~3 min
Restaurant Josephine 597 ft ~3 min
515 Somerville Avenue, Somerville 02143
Mo-Th 17:00-23:00; Fr 17:00-24:30; Sa 10:30-14:30,17:00-24:30; Su 10:30-14:30,17:00-23:00
Hotel Cambria Boston Somerville 642 ft ~3 min
Parking 635 ft ~3 min
24 Dane Street, Somerville 02143
Transit Somerville Ave @ Loring St 667 ft ~3 min
Transit Somerville Ave opp Central St 699 ft ~3 min
EV charging 683 ft ~3 min
Restaurant Wings Over Somerville 671 ft ~3 min
Su-Th 11:00-24:00, Fr,Sa 11:00-02:00
EV charging ChargePoint 979 ft ~4 min
Grocery Market Basket 0.23 mi ~5 min
400 Somerville Avenue, Somerville 02143
Mo-Sa 07:00-21:00; Su 07:00-20:00
Coffee Broadsheet Coffee Roasters 0.26 mi ~6 min
Coffee Forge Baking Company 0.29 mi ~6 min
626 Somerville Avenue, Somerville
Mo-Su 07:00-19:00
Grocery Star Market 0.33 mi ~7 min
275 Beacon Street, Somerville 02143
Mo-Su 07:00-22:00
EV charging 0.40 mi ~9 min
Grocery Whole Foods Market 0.42 mi ~9 min
45 Beacon Street, Somerville 02143
Mo-Su 08:00-22:00
Coffee Bloc 0.47 mi ~10 min
Convenience Get-N-Go 0.48 mi ~10 min
Pharmacy Skendarian Apothecary 0.48 mi ~10 min
1613 Cambridge Street, Cambridge 02138
Mo-Fr 08:00-18:00; Sa 09:00-14:00; Su 09:00-13:00
Convenience Friendly Market 0.49 mi ~10 min
69;71 Springfield Street
Convenience Harvard Market 0.49 mi ~10 min
1627 Cambridge Street, Cambridge 02138
Mo-Fr 07:00-19:00; Sa 08:00-19:00
Hotel Irving House 0.49 mi ~10 min
Pharmacy Walgreens 0.50 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.
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 Developmental Therapist covers
A Developmental Therapist is a person qualified by completion of an approved program in Developmental Therapy and where applicable credentialed by the state and practicing within the scope of the credential, or credentialed by completion of education experiences as approved by the state and practicing within the scope of that credential or, where state credentialing does not exist, certified by the Board of the Developmental Therapy Association. A developmental therapist evaluates children's global development in order to identify areas of developmental delay whether arising from physiological, neurological, or environmental factors, or a combination of factors; and designs, implements, and modifies therapeutic interventions for the child and the family to promote the child's acquisition of skills in a variety of developmental areas, including cognitive processes and social interaction in order to maximize functional independence and developmental homeostasis, and improve the quality of life at home and in the community; and provides consultation for the parents and other professionals working with the family on global development. NUCC Health Care Provider Taxonomy, code 222Q00000X
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 | 1003290131 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 18, 2015 |
| Last updated | Jul 18, 2015 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | CEIS |
| Practice address |
12 TYLER STREET Somerville, MA 02143 (617) 629-3919 |
| Mailing address |
55 OLIVER ST Somerville, MA 02145 |
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 | 9 | 0 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 9 | 0 | 1 | 6 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.