Michael O'brien, RN
Michael O'brien, RN is a Registered Nurse in Milford, MA, registered under NPI 1003408881.
Getting there
Here is what surrounds this office in Milford, based on OpenStreetMap data collected Sep 24, 2026. Parking is available about 707 ft away. The nearest transit stop is 254 ft away, served by EMK Community Health. A pharmacy sits 371 ft from the entrance (CVS Health), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Papa Gino's 60 ft ~1 min
42 Ste 104 Cape Road, 01757
Transit EMK Community Health 254 ft ~1 min
Parking 316 ft ~2 min
Pharmacy Edward M. Kennedy Community Pharmacy 314 ft ~2 min
Pharmacy CVS Health 371 ft ~2 min
137 South Main Street
Restaurant McDonald's 589 ft ~3 min
139 South Main Street, Milford 01757
05:00-23:00
Parking 660 ft ~3 min
Parking 707 ft ~3 min
Gas station Riverside 870 ft ~4 min
146 Ste 10 South Main Street, Milford 01757
Convenience Riverside 883 ft ~4 min
Restaurant Tokyo 0.22 mi ~5 min
121 Depot Street
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 |
|---|---|---|
| RN2303490 | MA | Registered Nurse primary |
This provider holds licence RN2303490 issued in MA. 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 Registered Nurse covers
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span. NUCC Health Care Provider Taxonomy, code 163W00000X
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 | 1003408881 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 3, 2021 |
| Last updated | Feb 3, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | RN |
| Practice address |
42 CAPE RD Milford, MA 01757 (800) 853-2288 |
| Mailing address |
184 S QUINSIGAMOND AVE Shrewsbury, MA 01545 |
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 | 4 | 0 | 8 | 8 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 0 | 7 | 8 | 7 |
Sum = 59 · next multiple of 10 = 60 · 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.