Barbara Custer

Barbara Custer is a Acupuncturist provider (Acupuncturist) practicing in Mill Valley, CA, registered in the NPPES registry with NPI 1912023243 since 2007.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1912023243
Entity type	Individual (Type 1)
Name	Barbara Custer
Sex	Female
Practice address	Mill Valley, CA, 94941
Phone	4153833040
Enumeration date	2007-03-21
Last updated in NPPES	2007-07-26

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
171100000X	Acupuncturist	Primary	—	CA

Copy-ready billing details

Provider: Barbara Custer
NPI: 1912023243
Taxonomy: 171100000X (Acupuncturist)
Address: Mill Valley, CA, 94941

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1831249994	Barbara Reitz	Individual	Chiropractor	Mill Valley, CA
1538203500	Amie Brooke	Individual	Acupuncturist	Mill Valley, CA
1114129186	Ravi Lescher	Individual	Physical Therapist	Mill Valley, CA
1811125958	Cheryl Kosmas	Individual	Physical Therapist	Mill Valley, CA
1194094243	Chalita Photikoe	Individual	Acupuncturist	Mill Valley, CA
1982047007	Katherine Armer	Individual	Acupuncturist	Mill Valley, CA
1255790580	Carly (Carol) Schneider	Individual	Dental Hygienist	Mill Valley, CA

Verify this record

Cross-check NPI 1912023243 against the authoritative CMS record: view Barbara Custer on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Where does Barbara Custer practice?

The practice location on file with NPPES is in Mill Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Barbara Custer?

The National Provider Identifier (NPI) for Barbara Custer is 1912023243, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-26.