Mark Bloch

  • Pleasanton, CA
  • Psychiatrist
NPI1932388485
Part D claims, 2024
2,654
Publications
78
Clinical trials
11
Hospital affiliations
1
Industry payments
$4,041
Practice address
5555 West Las Positas Boulevard, Pleasanton, CA 94588
Practice phone
Call (925) 847-3000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Health Care Tri-Valley

Hospital · Pleasanton, California

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Mark Bloch is a psychiatrist in Pleasanton, California

Mark Bloch practices at Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University.

Mark Bloch's NPI, 1932388485, was assigned on November 1, 2007. Mark Bloch graduated from Geisel School Of Medicine At Dartmouth in 1995. Mark Bloch's California license number on file is A60705.

NPI and contact details
NPI enumeration date
November 1, 2007
NPI status
Active
Practice phone
(925) 847-3000
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
1995

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

Mark Bloch practices at Stanford Health Care Tri-Valley in Pleasanton, California

Mark Bloch's primary practice is Stanford Health Care Tri-Valley, at 5555 West Las Positas Boulevard, Pleasanton, CA 94588 in Alameda County. The practice phone is (925) 847-3000.

Source: Dmand AI Affiliation Data

Mark Bloch is affiliated with 1 site of care

Mark Bloch's primary practice is Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University.

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

Dmand AI tracks the EHR system at Mark Bloch's practice

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

EHR by site
SiteEHR vendor and product
Stanford Health Care Tri-ValleyAvailable with a free account

Source: Dmand AI Technology Install Data

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Mark Bloch is one of 6,803 psychiatrists in California

Psychiatry is Mark Bloch's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Mark Bloch is board certified in psychiatry by the American Board of Psychiatry and Neurology. Mark Bloch has a license on file in California.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A60705 · 1996 to 2025 · taxonomy 2084P0800X

Psychiatrists near Mark Bloch

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

Mark Bloch's patients have a median age of 38

Across all payers, Dmand AI patient panel data puts Mark Bloch's median patient age at 38, with 47% women.

Mark Bloch's patients across all payers

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

Patient panel by age, all payers

Median age 38

Patient panel by sex, all payers

  • Women47%
  • Men37%

Source: Dmand AI Patient Panel Data

Mark Bloch wrote 2,654 Medicare Part D claims in 2024

In 2024, Mark Bloch wrote 2,654 Medicare Part D claims for 198 patients. 89% of them were for generic drugs. CMS names the drug for 2,475 of them, across 54 drugs with 11 or more claims each, at $183,423 in total drug cost. In 2023, CMS named 2,343 claims across 49 drugs.

Part D claims, 20242,654
Drugs named by CMS54
Total drug cost$183,423
Part D patients198

Mark Bloch's Part D claims by kind of drug, 2024

  • Generic2,365 claims89%
  • Brand-name289 claims11%

Mark Bloch'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 Mark Bloch's Part D claims, 2024

  • Antipsychotics, patients 65 and over9%237 of 2,654 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: 2,3432024: 2,4756%

Drugs named by CMS: 54 in 2024, 49 in 2023.

See all prescribing by Mark Bloch

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

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Mark Bloch has 78 publications on record

Dmand AI links 78 papers to Mark Bloch, published from 2011 to 2024. 2024 was the busiest year, with 12. The most frequent topics are HIV Infections, Anti-HIV Agents and Australia. Mark Bloch has published most often in AIDS. Mark Bloch's most frequent co-authors are Norman Roth, MD, MS, Nila Joanna Dharan, MD and Sorana Segal-Maurer, MD.

Papers78
Years published2011 to 2024

Mark Bloch's papers by year, 2014 to 2024

Topics Mark Bloch writes about most

  • HIV Infections
  • Anti-HIV Agents
  • Australia
  • HIV-1
  • Homosexuality, Male
  • CD4 Lymphocyte Count
  • Pre-Exposure Prophylaxis
  • Viral Load

Mark Bloch's most frequent co-authors

Recent publications by Mark Bloch

See all 78 publications and co-authors

See who Mark Bloch researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Mark Bloch 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

Mark Bloch has worked on 11 clinical trials

Dmand AI links Mark Bloch to 11 clinical trials, 7 of them phase 3 studies. Conditions studied include Meningococcal Infections, Acquired Immunodeficiency Syndrome and Diabetes Mellitus, Type 2. GlaxoSmithKline sponsors the most, 7.

Clinical trials with Mark Bloch by phase

  1. NonePhase 1: no trials
  2. 1Phase 1/2: 1 trial
  3. 1Phase 2: 1 trial
  4. 7Phase 3: 7 trials
  5. 1Phase 4: 1 trial

Conditions in Mark Bloch's trials

  • Meningococcal Infections
  • Acquired Immunodeficiency Syndrome
  • Diabetes Mellitus, Type 2
  • Gonorrhea
  • HIV Infections

Investigators on the most trials with Mark Bloch

Recent clinical trials with Mark Bloch

See all 11 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Mark Bloch received $4,041 in industry payments from 2016 to 2025

CMS Open Payments shows 91 general payments to Mark Bloch from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Allergan Inc. paid the most, $784.

General payments to Mark Bloch by program year, 2016 to 2025

General payments to Mark Bloch by kind, 2016 to 2025

$4Kin total
  • Food and beverage$3,65390%
  • Travel and lodging$1574%
  • Consulting fees$1504%
  • Education$802%

Companies that paid Mark Bloch the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Mark Bloch

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

Mark Bloch has 1 award and honors on record

Dmand AI lists 1 award for Mark Bloch.

Awards and honors for Mark Bloch

  1. Undated
    • Checkbook Top Doc

Source: Dmand AI Professional Profile Data

Mark Bloch graduated from Geisel School Of Medicine At Dartmouth

Mark Bloch graduated from Geisel School Of Medicine At Dartmouth in 1995.

  1. Medical schoolGeisel School Of Medicine At Dartmouth
  2. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Sources for Mark Bloch'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 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile 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 Mark Bloch

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

What is Mark Bloch's NPI number?

Mark Bloch's NPI number is 1932388485. It was assigned on November 1, 2007, and it is active in the NPI Registry.

What does Mark Bloch specialize in?

Mark Bloch is a psychiatrist in Pleasanton, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Mark Bloch practice?

Mark Bloch practices at 5555 West Las Positas Boulevard, Pleasanton, CA 94588. Mark Bloch's primary practice is Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University.

What is Mark Bloch's office phone number?

The practice phone on file for Mark Bloch is (925) 847-3000.

What is Mark Bloch's medical license number?

Mark Bloch's California license number on file is A60705.

Which hospitals is Mark Bloch affiliated with?

Mark Bloch practices at Stanford Health Care Tri-Valley in Pleasanton, California.

Is Mark Bloch board certified?

Yes. Mark Bloch is board certified in psychiatry by the American Board of Psychiatry and Neurology.

Where did Mark Bloch go to medical school?

Mark Bloch graduated from Geisel School Of Medicine At Dartmouth in 1995.

What drugs does Mark Bloch prescribe most?

In 2024 Medicare Part D data, Mark Bloch's most prescribed drugs by claims were Lamotrigine, Lorazepam and Quetiapine Fumarate.

Has Mark Bloch received payments from drug or device companies?

CMS Open Payments shows $4,041 in general payments to Mark Bloch from 17 companies from 2016 to 2025. The largest total came from Allergan Inc.

Show 3 more questionsShow fewer questions

How long has Mark Bloch been practicing?

Mark Bloch graduated from medical school in 1995, 31 years ago.

Does Mark Bloch do research?

Dmand AI links 78 publications to Mark Bloch, published from 2011 to 2024. Mark Bloch has worked on 11 clinical trials.

Who does Mark Bloch publish with?

Mark Bloch's most frequent co-authors are Norman Roth, MD, MS (10 shared papers), Nila Joanna Dharan, MD (5 shared papers) and Sorana Segal-Maurer, MD (3 shared papers).

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