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PHILIP HEINZ SOSSENHEIMER MD
NPI 1144858085
Internal Medicine - Hospice and Palliative Medicine in Stanford, CA

Active since March 27, 2020PECOS EnrolledAccepts Medicare Assignment
300 PASTEUR DRIVE, LANE 154, STANFORD, CA 94305(650) 723-6661(650) 498-6205 Get Directions Write a Review

NPPES record last updated: April 25, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 25, 2024, Apr 15, 2024, Mar 27, 2020 (3 updates tracked since 2020).

About Philip Heinz Sossenheimer Md NPPES

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

PHILIP HEINZ SOSSENHEIMER MD (NPI 1144858085) is an individual hospice and palliative medicine provider in Stanford, California, licensed in California (A186372) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of University Of Chicago, Pritzker School Of Medicine (2020).

NPPES Registry Identity

NPI1144858085
Entity TypeIndividualMale
Primary Taxonomy207RH0002X
Provider Legal NamePHILIP HEINZ SOSSENHEIMERCredential: MD
Location Address300 PASTEUR DRIVE, LANE 154Stanford, CA 94305-5133
Mailing Address300 Pasteur Drive, Lane 154Stanford, CA 94305-5133 · (650) 723-6661 · Fax (650) 498-6205
Phone(650) 723-6661
Fax(650) 498-6205
Sole ProprietorNo
Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 2020
Enumeration DateMarch 27, 2020
Last NPPES UpdateApril 25, 20243 updates tracked since enumeration
NPPES CertifiedApril 25, 2024
✔ NPI 1144858085 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
License✔ Licensed in CA · A186372
Definition
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
300 PASTEUR DRIVE, Stanford, CA 94305
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Philip Heinz Sossenheimer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951847284
PECOS Enrollment IDI20240723003677
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Philip Sossenheimer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Alameda Health System
11 mi
Federally Qualified Health Center (FQHC)
6066 CIVIC TERRACE AVE
Newark, CA 94560
  • Reassigned Medicare billing, California enrollment
  • 900 clinicians in this Medicare group
NPI 1497956288 (510) 505-1600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANDREA LORENZE M.D.
Hospitalist
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
MARTINA LEFTEROVA M.D., PH.D.
Pathology (Clinical Pathology/Laboratory Medicine)
300 PASTEUR DRIVE, LANE 235
STANFORD, CA 94305
Santa Clara County (650) 725-8383
DR. JEFFREY XING MD, PHD
Radiology (Diagnostic Radiology)
300 PASTEUR DRIVE, H1330, MC: 5621
STANFORD, CA 94305
Santa Clara County (650) 723-7816
DR. MICHAEL B FOWLER MB, FRCP
Internal Medicine (Cardiovascular Disease)
300 PASTEUR DRIVE, FALK CVRC 295
STANFORD, CA 94305
Santa Clara County (650) 723-7846
ARIAN MANSUR
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE
STANFORD, CA 94305
Santa Clara County (650) 723-5948
ERIK WILLIAM NOHR MD
Pathology (Molecular Genetic Pathology)
300 PASTEUR DRIVE, ROOM L235, MC:5324
STANFORD, CA 94305
Santa Clara County (650) 723-5252
DR. SAMUEL J. S. RUBIN PHD, MD
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
ALAN LYNN RINGOLD MD
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DRIVE
STANFORD, CA 94305
Santa Clara County (650) 723-4000

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 Philip Sossenheimer's NPI number?

The NPI number for Philip Sossenheimer is 1144858085. It was assigned to this individual provider in the NPPES registry on March 27, 2020.

Where is Philip Sossenheimer located?

Philip Sossenheimer practices at 300 Pasteur Drive Lane 154, Stanford, CA 94305. The listed phone number is (650) 723-6661.

What is Philip Sossenheimer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Philip Sossenheimer enrolled in Medicare?

Yes. Philip Sossenheimer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Philip Sossenheimer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Philip Sossenheimer reassigns Medicare benefits to Alameda Health System (Newark, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Philip Sossenheimer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Philip Sossenheimer was last updated on April 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.