Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. PERRY GROSSMAN M.D.
NPI 1902146145
Pediatrics in Lake Oswego, OR

Q: What is Perry Grossman's NPI number?

The NPI number for Perry Grossman is 1902146145. It was assigned to this individual provider in the NPPES registry on February 25, 2013.

Q: What is Perry Grossman's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: Is Perry Grossman enrolled in Medicare?

No. Perry Grossman has opted out of Medicare through November 21, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Perry Grossman was last updated on August 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 25, 2013Opted out of Medicare · through Nov 21, 2027

4231 COLLINS WAY, LAKE OSWEGO, OR 97035(503) 699-1819 Get Directions Write a Review

NPPES record last updated: August 9, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Perry Grossman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. PERRY GROSSMAN M.D. (NPI 1902146145) is an individual pediatrics provider in Lake Oswego, Oregon, licensed in Oregon (MD24008) and active in the NPI registry since February 2013. He has opted out of Medicare through November 21, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1902146145

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameDR. PERRY GROSSMANCredential: M.D.

Location Address4231 COLLINS WAYLake Oswego, OR 97035-3406

Mailing Address4231 Collins WayLake Oswego, OR 97035-3406 · (503) 699-1819

Phone(503) 699-1819

Sole ProprietorYes

Enumeration DateFebruary 25, 2013

Last NPPES UpdateAugust 9, 2026

✔ NPI 1902146145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in OR · MD24008

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

4231 COLLINS WAY, Lake Oswego, OR 97035

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

Dr. Perry Grossman M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from November 21, 2015 through November 21, 2027.

Opt-Out Effective DateNovember 21, 2015

Opt-Out In Effect ThroughNovember 21, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97035 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$90.51 typical visit price

range $58.99 – $176.88

Typical copayment $22.62 (range $14.74 – $44.22)

Most-billed visit code 99203

Established Patient

$103.51 typical visit price

range $19.32 – $144.79

Typical copayment $25.87 (range $4.83 – $36.19)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Perry Grossman's NPI number?

The NPI number for Perry Grossman is 1902146145. It was assigned to this individual provider in the NPPES registry on February 25, 2013.

Where is Perry Grossman located?

Perry Grossman practices at 4231 Collins Way, Lake Oswego, OR 97035. The listed phone number is (503) 699-1819.

What is Perry Grossman's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Perry Grossman enrolled in Medicare?

No. Perry Grossman has opted out of Medicare through November 21, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Perry Grossman was last updated on August 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.