Michael J. Older, MD PC
Michael J. Older, MD PC is a healthcare organization registered as Specialist in Ayer, MA, holding Type 2 (organization) NPI 1528495835 since 2013. The authorized official on file is Michael Older, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1528495835 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Michael J. Older, MD PC |
| Practice address | 190 GROTON RD, SUITE 190, Ayer, MA, 01432 |
| Phone | 9787723547 |
| Fax | 9787720558 |
| Enumeration date | 2013-10-01 |
| Last updated in NPPES | 2013-10-01 |
Authorized official
| Name | Michael Older |
|---|---|
| Title | President |
| Phone | 9787723547 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | 71640 | MA |
Copy-ready billing details
Provider: Michael J. Older, MD PC NPI: 1528495835 Taxonomy: 174400000X (Specialist) Address: 190 GROTON RD, SUITE 190, Ayer, MA, 01432
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1285630988 | Jeffrey Arpin | Individual | Surgery Physician | Ayer, MA |
| 1699767608 | Jonathan Held | Individual | Specialist | Ayer, MA |
| 1538152574 | Paul Harasimowicz | Individual | Specialist | Ayer, MA |
| 1669447579 | Asha Naidu | Individual | Infectious Disease Physician | Ayer, MA |
| 1346208196 | Primary Care Specialists Inc. | Organization | Primary Care Clinic/Center | Ayer, MA |
| 1386693885 | Deanna Kardoos | Individual | Physician Assistant | Ayer, MA |
| 1447201140 | Lotus Med LLC | Organization | Health Maintenance Organization | Ayer, MA |
| 1720031248 | Nashoba Valley Urology, Inc | Organization | Specialist | Ayer, MA |
Verify this record
Cross-check NPI 1528495835 against the authoritative CMS record: view Michael J. Older, MD PC on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is Michael J. Older, MD PC?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-10-01.