Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. NEAL H ADAMS MD
NPI 1659407823
Psychiatry & Neurology - Psychiatry in Napa, CALIFORNIA

Active since February 24, 2007PECOS Enrolled
1364 MILTON RD, 2100 NAPA VALLEJO HIGHWAY, NAPA, CALIFORNIA 94559(408) 591-2110 Get Directions Write a Review

NPPES record last updated: October 25, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 28, 2022, Mar 3, 2021, Feb 1, 2021 (3 updates tracked since 2021).

About Dr. Neal H Adams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NEAL H ADAMS MD (NPI 1659407823) is an individual psychiatry provider in Napa, CALIFORNIA, licensed in California (G43003) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Northwestern University Feinberg Medical School (1978).

NPPES Registry Identity

NPI1659407823
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. NEAL H ADAMSCredential: MD
Location Address1364 MILTON RD, 2100 NAPA VALLEJO HIGHWAYNapa, CALIFORNIA 94559
Mailing Address1364 Milton RdNapa, CA 94559-9769 · (408) 591-2110
Sole ProprietorYes
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1978
Enumeration DateFebruary 24, 2007
Last NPPES UpdateOctober 25, 20263 updates tracked since enumeration
NPPES CertifiedOctober 25, 2026
✔ NPI 1659407823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · G43003
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1364 MILTON RD, Napa, CALIFORNIA 94559

Secondary Practice Location 1

Location 111835 W Olympic Blvd Ste 1270ELos Angeles, CA 90064-5053 · Phone (310) 273-4843

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Neal H Adams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911189824
PECOS Enrollment IDI20110315000208
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Neal Adams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community/Behavioral Health
2751 NAPA VALLEY CORPORATE DR, BLDGS - A & B
Napa, CA 94558
  • Reassigned Medicare billing, California enrollment
  • 39 clinicians in this Medicare group
Psychiatry
2100 GENG RD STE 210
Palo Alto, CA 94303
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Wellmindonline Ca Licensed Clinical Social Worker Prof Corp
  • 54 clinicians in this Medicare group
Family Medicine
7543 SANTA MONICA BLVD
West Hollywood, CA 90046
  • Reassigned Medicare billing, California enrollment
  • 6 clinicians in this Medicare group
Clinical
1902 WRIGHT PL FL CENTER2
Carlsbad, CA 92008
  • Reassigned Medicare billing, California enrollment
  • 223 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94559 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$192.16 typical visit price
range $65.08 – $192.16
Typical copayment $48.04 (range $16.27 – $48.04)
Most-billed visit code 99205
Established Patient
$80.32 typical visit price
range $21.86 – $157.83
Typical copayment $20.08 (range $5.46 – $39.45)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Neal Adams's NPI number?

The NPI number for Neal Adams is 1659407823. It was assigned to this individual provider in the NPPES registry on February 24, 2007.

Where is Neal Adams located?

Neal Adams practices at 1364 Milton Rd 2100 Napa Vallejo Highway, Napa, CALIFORNIA 94559. The listed phone number is (408) 591-2110.

What is Neal Adams's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Neal Adams enrolled in Medicare?

Yes. Neal Adams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Neal Adams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Neal Adams reassigns Medicare benefits to 4 organizations: County Of Napa (Napa, CA), Wellmind Online Ca Licensed Clinical Social Worker Prof Corp (Palo Alto, CA), Flores And Flores Inc A Professional Corporation (West Hollywood, CA) and Memory Check Psychological Services, A Professional Corporation (Carlsbad, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Neal Adams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Neal Adams was last updated on October 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.