John Best

  • San Francisco, CA
  • Neurologist
NPI1871955476PAC ID0446673917
Medicare services, 2022
107
Part D claims, 2024
1,070
Publications
13
Hospital affiliations
1
Industry payments
$213
Practice address
2238 Geary Blvd, San Francisco, CA 94115
Practice phone
Call (415) 833-3700
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

San Francisco Medical Center - Mammography

Mammography / Breast Imaging Center · San Francisco, California

See all 6 affiliations

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John Best is a neurologist in San Francisco, California

John Best practices at San Francisco Medical Center - Mammography in San Francisco, California.

John Best's NPI, 1871955476, was assigned on March 23, 2016. John Best graduated from UCSF School of Medicine in 2016. John Best holds California license A168313.

NPI and contact details
Medicare PAC ID
0446673917
NPI enumeration date
March 23, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(415) 833-3700
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
36
Medical school graduation
2016

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

John Best practices at San Francisco Medical Center - Mammography in San Francisco, California

John Best's primary practice is San Francisco Medical Center - Mammography, at 2238 Geary Blvd, San Francisco, CA 94115. The practice phone is (415) 833-3700.

  • San Francisco Medical Center - Mammography
    2238 Geary Blvd, San Francisco, CA 94115Phone(415) 833-3700

Source: Dmand AI Affiliation Data

John Best is affiliated with 3 sites of care and 3 medical groups

John Best's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. John Best is also affiliated with San Francisco Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links John Best to 2 more medical groups and 1 group practice or clinic, each named with a free account. John Best's employer is on file too: a breast imaging center.

See all 6 affiliations for John Best

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at John Best's practice

Dmand AI tracks the electronic health record (EHR) system at each site where John Best practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
San Francisco Medical Center - MammographyAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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John Best is one of 2,207 neurologists in California

Neurology is John Best's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. John Best is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has John Best's licenses on file in 2 states: California and Pennsylvania.

Specialties and state licenses

  • Neurology, CaliforniaPrimaryLicense A168313 · 2020 to 2026 · taxonomy 2084N0400X
  • Pennsylvania license2016 to 2020

Neurologists near John Best

Counts of neurologists 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

John Best billed Medicare for 107 services in 2022

CMS data shows 107 Medicare services from John Best across 2 procedure codes in 2022. Medicare paid $5,865 for them. Every service was in an office.

Medicare services, 2022107
Paid by Medicare$5,865
Procedure codes2

John Best's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Other services
2021: 1612022: 6858%
Office and hospital visits
2021: 902022: 3957%

John Best compared with the California median for neurologists, 2022

  • John Best
  • California median
Medicare services
107vs 40474% below
Part D claims
885vs 3242.7 times

Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.

John Best's most billed Medicare procedure codes, 2022

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

See all procedures by John Best

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

John Best's patients have a median age of 66

Across all payers, Dmand AI patient panel data puts John Best's median patient age at 66, with 54% women.

John Best's patients across all payers

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

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women54%
  • Men45%

Source: Dmand AI Patient Panel Data

John Best wrote 1,070 Medicare Part D claims in 2024

In 2024, John Best wrote 1,070 Medicare Part D claims for 223 patients. 95% of them were for generic drugs. CMS names the drug for 885 of them, across 22 drugs with 11 or more claims each, at $43,251 in total drug cost. In 2023, CMS named 474 claims across 16 drugs.

Part D claims, 20241,070
Drugs named by CMS22
Total drug cost$43,251
Part D patients223

John Best's Part D claims by kind of drug, 2024

  • Generic1,013 claims95%
  • Brand-name57 claims5%

John Best'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 John Best's Part D claims, 2024

  • Antipsychotics, patients 65 and over4%42 of 1,070 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: 4742024: 88587%

Drugs named by CMS: 22 in 2024, 16 in 2023.

See all prescribing by John Best

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

John Best offers telehealth to Medicare patients

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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John Best has 13 publications on record

Dmand AI links 13 papers to John Best, published from 2015 to 2023. 2016 was the busiest year, with 3. The most frequent topics are China, Sexually Transmitted Diseases and HIV Infections. John Best has published most often in PLoS One. John Best's most frequent co-authors are Meg Caroline Doherty, MD, PhD, MPH and Zachary Clarke Rich, MD.

Papers13
Years published2015 to 2023

John Best's papers by year, 2015 to 2023

Topics John Best writes about most

  • China
  • Sexually Transmitted Diseases
  • HIV Infections
  • Homosexuality, Male
  • Risk-Taking
  • Sexual Partners
  • Internet
  • Sexual Behavior

John Best's most frequent co-authors

Recent publications by John Best

See all 13 publications and co-authors

See who John Best researches with

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

How network discovery works

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

John Best received $213 in industry payments from 2022 to 2023

CMS Open Payments shows 2 general payments to John Best from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $139.

General payments to John Best by program year, 2022 to 2023

Companies that paid John Best the most, 2022 to 2023

Share is of all general payments to this clinician.

See all payments to John Best

Source: Open Payments (CMS), 2025 data, released July 7, 2026

John Best graduated from UCSF School of Medicine

John Best graduated from UCSF School of Medicine in 2016.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

John Best accepts plans from 5 insurance carriers

John Best is in network with 5 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types John Best accepts, by number of carriers

  1. Medicare4
  2. PPO3
  3. EPO1
  4. HMO1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for John Best'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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 Data
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
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 John Best

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

What is John Best's NPI number?

John Best's NPI number is 1871955476. It was assigned on March 23, 2016, and it is active in the NPI Registry.

What does John Best specialize in?

John Best is a neurologist in San Francisco, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does John Best practice?

John Best practices at 2238 Geary Blvd, San Francisco, CA 94115. John Best's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. Dmand AI also links John Best to 2 medical groups and 1 group practice or clinic.

What is John Best's office phone number?

The practice phone on file for John Best is (415) 833-3700.

What is John Best's medical license number?

John Best holds California license A168313, one of the licenses on file in 2 states.

Which states has John Best been licensed in?

Dmand AI has state licenses on file for John Best in California (2020 to 2026) and Pennsylvania (2016 to 2020).

Which hospitals is John Best affiliated with?

John Best is affiliated with San Francisco Medical Center.

What medical group is John Best part of?

John Best is linked to The Permanente Medical Group, Inc. Dmand AI links John Best to 2 more medical groups.

Does John Best accept Medicare?

Yes. CMS data shows John Best billed Medicare for 107 services in 2022, and John Best accepts Medicare assignment.

Does John Best offer telehealth?

Yes. The CMS Doctors and Clinicians file lists John Best as offering telehealth services.

Show 9 more questionsShow fewer questions

Is John Best board certified?

Yes. John Best is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does John Best bill to Medicare?

In 2022, John Best's most billed Medicare services were medicare service (G2212) and office visit, established patient (99215).

Where did John Best go to medical school?

John Best graduated from UCSF School of Medicine in 2016.

What drugs does John Best prescribe most?

In 2024 Medicare Part D data, John Best's most prescribed drugs by claims were Donepezil HCl, Carbidopa-Levodopa and Escitalopram Oxalate.

Has John Best received payments from drug or device companies?

CMS Open Payments shows $213 in general payments to John Best from 2 companies from 2022 to 2023. The largest total came from Medtronic, Inc.

How long has John Best been practicing?

John Best graduated from medical school in 2016, 10 years ago.

Does John Best do research?

Dmand AI links 13 publications to John Best, published from 2015 to 2023.

Who does John Best publish with?

John Best's most frequent co-authors are Meg Caroline Doherty, MD, PhD, MPH (2 shared papers) and Zachary Clarke Rich, MD (1 shared paper).

What insurance does John Best accept?

John Best is in network with 5 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

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