DR. MARK ELLIOT ROSEN DO
NPI 1942338009
Neuromusculoskeletal Medicine & OMM in Portola Valley, CA

Q: What is Mark Rosen's NPI number?

The NPI number for Mark Rosen is 1942338009. It was assigned to this individual provider in the NPPES registry on March 1, 2007.

Q: What is Mark Rosen's specialty?

The primary specialty registered for this NPI is Neuromusculoskeletal Medicine & OMM with taxonomy code 204D00000X.

Q: Is Mark Rosen enrolled in Medicare?

No. Mark Rosen has opted out of Medicare through March 2, 2028. 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 Mark Rosen was last updated on February 1, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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 March 01, 2007Opted out of Medicare · through Mar 2, 2028

4370 ALPINE RD STE 205, PORTOLA VALLEY, CA 94028(650) 529-0304(650) 529-1479 Get Directions Write a Review

NPPES record last updated: February 1, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Mark Elliot Rosen Do NPPES

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

DR. MARK ELLIOT ROSEN DO (NPI 1942338009) is an individual neuromusculoskeletal medicine & omm provider in Portola Valley, California, licensed in California (20 A 4880) and active in the NPI registry since March 2007. He has opted out of Medicare through March 2, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1942338009

Entity TypeIndividualMale

Primary Taxonomy204D00000X

Provider Legal NameDR. MARK ELLIOT ROSENCredential: DO

Location Address4370 ALPINE RD STE 205Portola Valley, CA 94028-7953

Mailing Address4370 Alpine Rd Ste 205Portola Valley, CA 94028-7953 · (650) 529-0304 · Fax (650) 529-1479

Phone(650) 529-0304

Fax(650) 529-1479

Sole ProprietorYes

Enumeration DateMarch 1, 2007

Last NPPES UpdateFebruary 1, 2014

✔ NPI 1942338009 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeuromusculoskeletal Medicine & OMMAllopathic & Osteopathic Physicians

Taxonomy Code204D00000X

License✔ Licensed in CA · 20 A 4880

Definition

The Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine physician directs special attention to the neuromusculoskeletal system and its interaction with other body systems. Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine encompasses increased knowledge and understanding of osteopathic principles and practice and heightened technical skills of osteopathic manipulative medicine, and integrates each of these into the management of pediatric, adolescent, adult, and geriatric patients.

4370 ALPINE RD STE 205, Portola Valley, CA 94028

Open in Google Maps ↗

Other Identifiers 2

Medicare UPINE 08836CA

Medicare PIN020A4880CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Mark Elliot Rosen Do 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 March 2, 2016 through March 2, 2028.

Opt-Out Effective DateMarch 2, 2016

Opt-Out In Effect ThroughMarch 2, 2028Opt-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.

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 Mark Rosen's NPI number?

The NPI number for Mark Rosen is 1942338009. It was assigned to this individual provider in the NPPES registry on March 1, 2007.

Where is Mark Rosen located?

Mark Rosen practices at 4370 Alpine Rd Ste 205, Portola Valley, CA 94028. The listed phone number is (650) 529-0304.

What is Mark Rosen's specialty?

The primary specialty registered for this NPI is Neuromusculoskeletal Medicine & OMM with taxonomy code 204D00000X.

Is Mark Rosen enrolled in Medicare?

No. Mark Rosen has opted out of Medicare through March 2, 2028. 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 Mark Rosen was last updated on February 1, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.