Active NPI
Perry Grossman, M.D.
- Pediatrics Physician
- Lake Oswego, OR
National Provider Identifier
1902146145
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatrics Physician
- License
- MD24008
- Practice address
- 4231 Collins Way
Lake Oswego, OR 97035-3406 - Phone
- (503) 699-1819
- NPI assigned
- Feb 25, 2013
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatrics Physician | 208000000X | MD24008 | OR | Primary |
Addresses
Primary practice location
4231 Collins Way
Lake Oswego, OR 97035-3406
Mailing address
4231 Collins Way
Lake Oswego, OR 97035-3406
Phone (503) 699-1819
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Nov 21, 2015 through Nov 21, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD24008 | OR | MD | Pediatrics Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1361750400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786233600000",
"number": "1902146145",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4231 COLLINS WAY",
"city": "LAKE OSWEGO",
"state": "OR",
"postal_code": "970353406",
"telephone_number": "503-699-1819"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4231 COLLINS WAY",
"city": "LAKE OSWEGO",
"state": "OR",
"postal_code": "970353406",
"telephone_number": "503-699-1819"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GROSSMAN",
"first_name": "PERRY",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2013-02-25",
"last_updated": "2026-08-09",
"status": "A"
},
"taxonomies": [
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "OR",
"license": "MD24008",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Lake Oswego, OR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.