Dr. Eric G. Weaver, MD

  • Berkeley, CA
  • Psychiatrist
NPI1538604608PAC ID8022429158
Medicare services, 2024
485
Medicare patients, 2024
28
Part D claims, 2024
224
Publications
1
Affiliated sites
1
Practice address
2020 Milvia St, Berkeley, CA 94704
Practice phone
Call (510) 204-4635
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Bay Psychiatric Associates

Berkeley, California

See all 3 affiliations

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Dr. Eric G. Weaver is a psychiatrist in Berkeley, California

Dr. Weaver practices at Bay Psychiatric Associates in Berkeley, California.

Dr. Weaver's NPI, 1538604608, was assigned on December 28, 2016. Dr. Weaver graduated from The Johns Hopkins University School of Medicine in 2019. Dr. Weaver holds California license A182212.

NPI and contact details
Medicare PAC ID
8022429158
NPI enumeration date
December 28, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(510) 204-4635
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
33
Medical school graduation
2019

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Eric G. Weaver practices at Bay Psychiatric Associates in Berkeley, California

Dr. Weaver's primary practice is Bay Psychiatric Associates, at 2020 Milvia St, Berkeley, CA 94704 in Alameda County. The practice phone is (510) 204-4635.

  • Bay Psychiatric Associates
    2020 Milvia St, Berkeley, CA 94704 · Alameda CountyPhone(510) 204-4635

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Eric G. Weaver is affiliated with 2 sites of care and 1 medical group

Dr. Weaver's primary practice is Bay Psychiatric Associates in Berkeley, California. The medical group on file is Bay Psychiatric Associates. Dmand AI also links Dr. Weaver to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Weaver

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Eric G. Weaver's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weaver practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Bay Psychiatric AssociatesAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Eric G. Weaver is one of 6,803 psychiatrists in California

Psychiatry is Dr. Weaver's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Weaver is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Weaver's licenses on file in 2 states: California and Maryland.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A182212 · 2022 to 2026 · taxonomy 2084P0800X
  • Student in an organized health care education/training program, MarylandLicense W-160-234-288-308 · taxonomy 390200000X

Clinical focus

Dmand AI lists bipolar disorder and depression among the conditions Dr. Weaver treats.

Psychiatrists near Dr. Weaver

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Eric G. Weaver billed Medicare for 485 services in 2024

CMS data shows 485 Medicare services from Dr. Weaver across 4 procedure codes in 2024, for 28 Medicare patients. Medicare paid $46,914 for them. Every service was in an office.

Medicare services, 2024485
Medicare patients28
Paid by Medicare$46,914
Procedure codes4

Dr. Weaver's Medicare services by type, 2024

  1. Tests and treatments254
  2. Office and hospital visits231

Dr. Weaver compared with the California median for psychiatrists, 2024

  • Dr. Weaver
  • California median
Medicare services
485vs 1194.1 times
Medicare patients
28vs 4132% below
Part D claims
152vs 1446% above

Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.

Dr. Weaver's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Need commercial claims for Dr. Weaver?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weaver and other psychiatrists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Eric G. Weaver treated 28 Medicare patients in 2024, average age 70

CMS counts 28 Medicare patients who saw Dr. Weaver in 2024. The largest group is 65 to 74, with 14 patients. 75% of them have anxiety, and 75% have depression. Their average risk score is 0.77, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Weaver's median patient age at 50, with 54% women.

Medicare patients, 202428
Average age70
Average risk score0.77

Dr. Weaver's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Weaver's Medicare patients by sex, 2024

  • Women1346%
  • Men1554%

Chronic conditions among Dr. Weaver's Medicare patients, 2024

  1. Anxiety75%
  2. Depression75%
  3. High cholesterol75%
  4. Mood disorders75%
  5. Arthritis50%
  6. High blood pressure50%

Share of Medicare patients with each condition. A patient can have several.

Dr. Weaver's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 50

Patient panel by sex, all payers

  • Women54%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Eric G. Weaver wrote 224 Medicare Part D claims in 2024

In 2024, Dr. Weaver wrote 224 Medicare Part D claims for 22 patients. 99% of them were for generic drugs. CMS names the drug for 152 of them, across 8 drugs with 11 or more claims each, at $2,176 in total drug cost. In 2023, CMS named 84 claims across 5 drugs.

Part D claims, 2024224
Drugs named by CMS8
Total drug cost$2,176
Part D patients22

Dr. Weaver's Part D claims by kind of drug, 2024

  • Generic221 claims99%
  • Brand-name and other3 claims1%

Dr. Weaver's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Weaver's Part D claims, 2024

  • Antipsychotics, patients 65 and over15%34 of 224 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 842024: 15281%

Drugs named by CMS: 8 in 2024, 5 in 2023.

See all prescribing by Dr. Weaver

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Eric G. Weaver offers telehealth to Medicare patients

Dr. Weaver accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Weaver as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Eric G. Weaver has 1 publication on record

Dmand AI links 1 paper to Dr. Weaver in 2024. Dr. Weaver's most frequent co-authors are Brian T. Anderson, MD, Brieze Keeley Bell, MD and James Alan Bourgeois, MD.

Papers1

Dr. Weaver's most frequent co-authors

Recent publications by Dr. Weaver

See all 1 publications and co-authors

See who Dr. Weaver researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weaver works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Eric G. Weaver graduated from The Johns Hopkins University School of Medicine

Dr. Weaver graduated from The Johns Hopkins University School of Medicine in 2019.

  1. Medical schoolThe Johns Hopkins University School of Medicine
  2. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Eric G. Weaver accepts plans from 8 insurance carriers

Dr. Weaver is in network with 8 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Kaiser Permanente. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Kaiser Permanente
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • United Healthcare

Plan types Dr. Weaver accepts, by number of carriers

  1. Medicare7
  2. PPO5
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Eric G. Weaver's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Eric G. Weaver

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Eric G. Weaver's NPI number?

Dr. Eric G. Weaver's NPI number is 1538604608. It was assigned on December 28, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Eric G. Weaver?

Dr. Eric G. Weaver is a psychiatrist in Berkeley, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Eric G. Weaver practice?

Dr. Weaver practices at 2020 Milvia St, Berkeley, CA 94704. Dr. Weaver's primary practice is Bay Psychiatric Associates in Berkeley, California. Dmand AI also links Dr. Weaver to 1 group practice or clinic.

What is Dr. Eric G. Weaver's office phone number?

The practice phone on file for Dr. Weaver is (510) 204-4635.

What is Dr. Eric G. Weaver's medical license number?

Dr. Weaver holds California license A182212, one of the licenses on file in 2 states.

Which states has Dr. Eric G. Weaver been licensed in?

Dmand AI has state licenses on file for Dr. Weaver in California (2022 to 2026) and Maryland.

What medical group is Dr. Eric G. Weaver part of?

Dr. Weaver is linked to Bay Psychiatric Associates.

Does Dr. Eric G. Weaver accept Medicare?

Yes. CMS data shows Dr. Weaver billed Medicare for 485 services in 2024, and Dr. Weaver accepts Medicare assignment.

Does Dr. Eric G. Weaver offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Weaver as offering telehealth services.

How many Medicare patients does Dr. Eric G. Weaver see?

CMS counts 28 Medicare patients who saw Dr. Weaver in 2024, with an average age of 70.

Show 8 more questionsShow fewer questions

Is Dr. Eric G. Weaver board certified?

Yes. Dr. Weaver is board certified in psychiatry by the American Board of Psychiatry and Neurology.

What services does Dr. Eric G. Weaver bill to Medicare?

In 2024, Dr. Weaver's most billed Medicare services were office visit, established patient (99214), psychiatric service (90833) and psychiatric service (90836).

Where did Dr. Eric G. Weaver go to medical school?

Dr. Weaver graduated from The Johns Hopkins University School of Medicine in 2019.

What drugs does Dr. Eric G. Weaver prescribe most?

In 2024 Medicare Part D data, Dr. Weaver's most prescribed drugs by claims were Bupropion XL, Gabapentin and Olanzapine.

How long has Dr. Eric G. Weaver been practicing?

Dr. Weaver graduated from medical school in 2019, 7 years ago.

Does Dr. Eric G. Weaver do research?

Dmand AI links 1 publication to Dr. Weaver.

Who does Dr. Eric G. Weaver publish with?

Dr. Weaver's most frequent co-authors are Brian T. Anderson, MD (1 shared paper), Brieze Keeley Bell, MD (1 shared paper) and James Alan Bourgeois, MD (1 shared paper).

What insurance does Dr. Eric G. Weaver accept?

Dr. Weaver is in network with 8 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Kaiser Permanente. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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