MICHAEL D. ANDYA M.D. – NPI #1760428452
Internal Medicine

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Health Care Provider Taxonomy Code for Internal Medicine

MICHAEL ANDYA is a physician located in GRASS VALLEY, CA. NPPES has assigned the NPI number 1760428452 to MICHAEL ANDYA on June 21, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 207R00000X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine.

The NPI profile was last updated on May 28, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for MICHAEL ANDYA below.

NPI Profile for
MICHAEL D. ANDYA

NPI Number
1760428452
Enumeration Date

(about 20 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
MICHAEL D. ANDYA
Credentials
M.D.
Primary location
402 S AUBURN ST
GRASS VALLEY, CA 95945-7226
Phone: (530) 273-2221 Fax: (530) 273-3550
Mailing address
Same as primary location
Sole Proprietor
Yes
Updated
Certification Date
May 28, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207R00000X
- Internal Medicine (Primary)		 CA G69223

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
UNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE - Graduated 1989
Offers Telehealth Services
Yes - Telehealth services allows you to talk to your health care provider using audio/video communications, such as Zoom, without actually going in to the doctor's office
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
MICHAEL ANDYA is affiliated with the following medical group(s):
  • HOSPITAL
    • OROVILLE HOSPITAL
      2767 OLIVE HIGHWAY
      OROVILLE, CA 95966
    • SIERRA NEVADA MEMORIAL HOSPITAL
      155 GLASSON WAY
      GRASS VALLEY, CA 95945
    • SUTTER AUBURN FAITH HOSPITAL
      11815 EDUCATION STREET
      AUBURN, CA 95603
  • HOME HEALTH AGENCY
    • ADVANCED HOME HEALTH, INC
      4354 AUBURN BLVD, SUITE 300
      SACRAMENTO, CA 95841
    • PROGRESSIVE HOME CARE - AUBURN
      11879 KEMPER ROAD, SUITE 15
      AUBURN, CA 95603
  • HOSPICE
    • HOSPICE OF THE FOOTHILLS
      11270 ROUGH AND READY HIGHWAY
      GRASS VALLEY, CA 95945

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