Nathan Ross Ehmer, D.O.

Primary specialty

Orthopaedic Trauma PhysicianTaxonomy code 207XX0801X

License

20A 10366 Issued in CA

Practice address

2510 Airpark Dr Ste 301
Redding, CA 96001-2462

Phone

(530) 242-3500

Fax

(530) 242-3546

NPI assigned

Apr 14, 2008

Last updated

Aug 4, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Orthopedic Surgery

Education

Arizona College of Osteopathic Medicine Mid Western University, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dignity Health Medical FoundationGroup PAC ID 7810800661, 1,211 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Medical Center Redding Hospital, Redding, CA, CCN 050280

Merit-based Incentive Payment System (MIPS)

Final score

81.03 of 100Reported as subgroup

Quality

80.86

Promoting interoperability

76

Improvement activities

40

Cost

75.91

Merit-based Incentive Payment System (MIPS)

Final score

0 of 100Reported as individual

Quality

0

Promoting interoperability

0

Improvement activities

0

Cost

0

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nehmerdo26653@hisp.ehr.sutterhealth.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Dignity Health Medical Foundation

  dba Mercy Medical Group, a service of Dignity Health Medical Foundation

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1700803418
  Medicare reassignment Care Compare group NPD
• Shasta Orthopedics & Sports Medicine a Medical Corporation

  dba Shasta Orthopaedics and Sports Medicine

  • Orthopaedic Surgery Physician
  • Redding, CA
  • NPI 1750493979

  Orthopaedic Trauma

  Medicare reassignment NPD
• California Orthopedics & Spine Inc

  • Orthopaedic Surgery Physician
  • Novato, CA
  • NPI 1255835203
  NPD
• California Orthopedics & Spine Inc

  • Orthopaedic Surgery Physician
  • Larkspur, CA
  • NPI 1356836993
  NPD
• California Orthopedics & Spine Inc

  • Orthopaedic Surgery Physician
  • Larkspur, CA
  • NPI 1497701767
  NPD
• Dignity Health Medical Foundation

  dba Dignity Health Medical Group - North State, a service of Dignity Healt

  • Multi-Specialty Clinic/Center
  • Redding, CA
  • NPI 1912288432
  NPD
• Regents Univ of California UCSF

  dba UCSF Physician Group

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1124439807
  NPD
• Apogee Outpatient Surgery Center

  • Ambulatory Surgical Clinic/Center
  • Redding, CA
  • NPI 1912094509
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Dignity Health

  dba Mercy Medical Center Redding

  • General Acute Care Hospital
  • Redding, CA
  • NPI 1477671535
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1208131200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1871767673",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3400 DATA DR",
            "city": "RANCHO CORDOVA",
            "state": "CA",
            "postal_code": "956707956"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2510 AIRPARK DR STE 301",
            "city": "REDDING",
            "state": "CA",
            "postal_code": "960012462",
            "telephone_number": "530-242-3500",
            "fax_number": "530-242-3546"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "EHMER",
        "first_name": "NATHAN",
        "middle_name": "ROSS",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-04-14",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "CA",
            "license": "20A 10366",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephen W Edwards, D.C.
• Meghan Edwardson
• Christopher Allen Eger
• John D Egolf, NP
• Adaku Eguzouwa
• Peter John Eichwald, NURSE PRACTITIONER
• Leo Edward Eickhoff III, M.D.
• Mark Bernard Eighan, D.D.S.
• Jennifer Eirish
• Kenneth Errol Ekelund, O.D.

• Orthopaedic Trauma Physician in Redding, CA
• Providers in Redding, CA by specialty
• Orthopaedic Trauma Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 2025; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.