Dr Nathan Ross Ehmer, DO - Medicare Orthopedic Surgery in Larkspur, CA

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Dr Nathan Ross Ehmer, DO is a medicare enrolled "Orthopaedic Surgery - Orthopaedic Trauma" physician in Larkspur, California. He went to Arizona College Of Osteopathic Medicine Mid Western University and graduated in 2003 and has 21 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice California Orthopedics And Spine Inc and his current practice location is 18 Bon Air Rd, Larkspur, California. You can reach out to his office (for appointments etc.) via phone at (415) 927-5300.

Dr Nathan Ross Ehmer is licensed to practice in California (license number 20A 10366) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1871767673.

Contact Information

Dr Nathan Ross Ehmer, DO
18 Bon Air Rd,
Larkspur, CA 94939-1123
(415) 927-5300
(415) 927-6860

Map and Direction




Physician's Profile

Full NameDr Nathan Ross Ehmer
GenderMale
SpecialityOrthopedic Surgery
Experience21 Years
Location18 Bon Air Rd, Larkspur, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Nathan Ross Ehmer attended and graduated from Arizona College Of Osteopathic Medicine Mid Western University in 2003
  NPI Data:
  • NPI Number: 1871767673
  • Provider Enumeration Date: 04/14/2008
  • Last Update Date: 07/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8628127511
  • Enrollment ID: I20090526000270

Medical Identifiers

Medical identifiers for Dr Nathan Ross Ehmer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871767673NPI-NPPES
20A 10366OtherCALICENSE
P00764784OtherCARAILROAD MEDICARE
1871767673OtherCANPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XX0801XOrthopaedic Surgery - Orthopaedic Trauma 20A 10366 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Marinhealth Medical CenterGreenbrae, CAHospital
Novato Community HospitalNovato, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
California Orthopedics And Spine Inc751785963019

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Nathan Ross Ehmer allows following entities to bill medicare on his behalf.
Entity NameCalifornia Orthopedics & Spine Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497701767
PECOS PAC ID: 7517859630
Enrollment ID: O20040325000623
Entity NameShasta Orthopedics & Sports Medicine A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750493979
PECOS PAC ID: 3375533276
Enrollment ID: O20040513000733
Entity NameRegents Univ Of California Ucsf
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124439807
PECOS PAC ID: 6305160300
Enrollment ID: O20150122001375

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Nathan Ross Ehmer is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Nathan Ross Ehmer, DO
1255 Liberty St,
Redding, CA 96001-0814

Ph: (530) 246-2467		Dr Nathan Ross Ehmer, DO
18 Bon Air Rd,
Larkspur, CA 94939-1123

Ph: (415) 927-5300

Reviews and Comments


Orthopaedic Surgery Doctors in Larkspur, CA

Dr. Daniel Jordan Solomon, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 18 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-5300    
Dr. Brian Su, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 2 Bon Air Rd, Suite 120, Larkspur, CA 94939
Phone: 415-925-8200    Fax: 415-464-5480
Jamal Shillingford,
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 2 Bon Air Rd Ste 120, Larkspur, CA 94939
Phone: 415-927-5300    
Dr. David H. Goltz, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 18 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-5300    Fax: 415-927-6860
Dr. John C. Keohane, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 18 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-5300    Fax: 415-927-6860
Dr. Michael S. Stock, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 18 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-5300    Fax: 415-927-6860
Dr. Michael J. Oechsel, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 18 Bon Air Rd, Larkspur, CA 94939
Phone: 415-927-5300    Fax: 415-927-6860

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.