Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ako M Walther, M.D.

Hospitalist Physician in Saint Helena, CA · enumerated 2013.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588907836

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Registry record

Entity type Individual (Type 1)

Name Dr. Ako M Walther

Credential M.D.

Sex Female

Practice address 10 Woodland Rd, Saint Helena, CA, 94574

Phone (707) 963-6399

Fax (707) 967-5915

Enumeration date Apr 4, 2013

Last updated in NPPES Oct 16, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A124467 (CA) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A124467 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A124467 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Ako Walther?

Ako Walther is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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William Duge Diagnostic Radiology Physician · Saint Helena, CA NPI 1275535700 Randy P. Hausted M.D. Inc Anatomic Pathology & Clinical Pathology Physician · St. Helena, CA NPI 1548254139 Hirofumi Hashimoto Internal Medicine Physician · Saint Helena, CA NPI 1104812585 David Carelock Certified Registered Nurse Anesthetist · Saint Helena, CA NPI 1790773596 St. Helena Hospital General Acute Care Hospital · Saint Helena, CA NPI 1720078082 Ari Umutyan Medical Oncology Physician · Saint Helena, CA NPI 1275516171 Edward Stump Emergency Medicine Physician · Saint Helena, CA NPI 1619950193 Dan Clay Emergency Medicine Physician · Saint Helena, CA NPI 1033192547

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-16.