Dr. Andrea Harzstark, MD

  • San Francisco, CA
  • Hematologist and oncologist
NPI1871766576PAC ID9234203357
Part D claims, 2024
978
Publications
43
Clinical trials
5
Hospital affiliations
1
Medical groups
2
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
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Social profiles

Primary practice

San Francisco Medical Center - Mammography

Mammography / Breast Imaging Center · San Francisco, California

See all 4 affiliations

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Dr. Andrea Harzstark is a hematologist and oncologist in San Francisco, California

Dr. Harzstark practices at San Francisco Medical Center - Mammography in San Francisco, California.

Dr. Harzstark's NPI, 1871766576, was assigned on April 2, 2008. Dr. Harzstark graduated from Stanford University School Of Medicine in 2002. Dr. Harzstark holds California license A86175.

NPI and contact details
Medicare PAC ID
9234203357
NPI enumeration date
April 2, 2008
NPI status
Active
Practice phone
(415) 833-3700
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
50
Medical school graduation
2002

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

Dr. Andrea Harzstark practices at San Francisco Medical Center - Mammography in San Francisco, California

Dr. Harzstark'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

Dr. Andrea Harzstark is affiliated with 2 sites of care and 2 medical groups

Dr. Harzstark's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. Dr. Harzstark is also affiliated with UCSF Langley Porter Psychiatric Hospital. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Harzstark to 1 more medical group, named with a free account. Dr. Harzstark's employer is on file too: a breast imaging center.

See all 4 affiliations for Dr. Harzstark

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

Dmand AI tracks the EHR system at Dr. Andrea Harzstark's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harzstark practices, 2 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
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Andrea Harzstark is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Harzstark's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Harzstark is board certified in medical oncology by the American Board of Internal Medicine. Dmand AI has Dr. Harzstark's licenses on file in 3 states: California, Georgia and Hawaii.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense A86175 · 2004 to 2026 · taxonomy 207RH0003X
  • Georgia license2025 to 2027
  • Hawaii license2025 to 2026

Hematologists and oncologists near Dr. Harzstark

Counts of hematologists and oncologists 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. Andrea Harzstark's patients have a median age of 66

Across all payers, Dmand AI patient panel data puts Dr. Harzstark's median patient age at 66, with 23% women.

Dr. Harzstark'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

  • Women23%
  • Men74%

Source: Dmand AI Patient Panel Data

Dr. Andrea Harzstark wrote 978 Medicare Part D claims in 2024

In 2024, Dr. Harzstark wrote 978 Medicare Part D claims for 137 patients. 76% of them were for generic drugs. CMS names the drug for 853 of them, across 20 drugs with 11 or more claims each, at $2,698,399 in total drug cost. In 2023, CMS named 869 claims across 19 drugs.

Part D claims, 2024978
Drugs named by CMS20
Total drug cost$2.7M
Part D patients137

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

  • Generic740 claims76%
  • Brand-name238 claims24%

Dr. Harzstark'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. Harzstark's Part D claims, 2024

  • Opioids4%40 of 978 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: 8692024: 8532%

Drugs named by CMS: 20 in 2024, 19 in 2023.

See all prescribing by Dr. Harzstark

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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Dr. Andrea Harzstark has 43 publications on record

Dmand AI links 43 papers to Dr. Harzstark, published from 2009 to 2024. 2013 was the busiest year, with 7. The most frequent topics are Prostatic Neoplasms, Prostate-Specific Antigen and Antineoplastic Combined Chemotherapy Protocols. Dr. Harzstark has published most often in Clin Cancer Res. Dr. Harzstark's most frequent co-authors are Eric J. Small, MD, Jonathan Eric Rosenberg, MD and Terence Ware Friedlander, MS.

Papers43
Years published2009 to 2024

Dr. Harzstark's papers by year, 2010 to 2024

Topics Dr. Harzstark writes about most

  • Prostatic Neoplasms
  • Prostate-Specific Antigen
  • Antineoplastic Combined Chemotherapy Protocols
  • Antineoplastic Agents
  • Carcinoma, Renal Cell
  • Kidney Neoplasms
  • Neoplasm Metastasis
  • Prostatic Neoplasms, Castration-Resistant

Dr. Harzstark's most frequent co-authors

Recent publications by Dr. Harzstark

See all 43 publications and co-authors

See who Dr. Harzstark researches with

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

How network discovery works

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

Dr. Andrea Harzstark has worked on 5 clinical trials

Dmand AI links Dr. Harzstark to 5 clinical trials, 2 of them phase 3 studies. 3 are still active or recruiting. Conditions studied include Prostatic Neoplasms, Prostatic Diseases and Carcinoma, Renal Cell. Alliance for Clinical Trials in Oncology sponsors the most, 2.

Clinical trials with Dr. Harzstark by phase

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

Conditions in Dr. Harzstark's trials

  • Prostatic Neoplasms
  • Prostatic Diseases
  • Carcinoma, Renal Cell
  • Carcinoma, Transitional Cell
  • Seminoma

Investigators on the most trials with Dr. Harzstark

Recent clinical trials with Dr. Harzstark

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

Dr. Andrea Harzstark has 1 award and honors on record

Dmand AI lists 1 award for Dr. Harzstark, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Harzstark

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Andrea Harzstark graduated from Stanford University School Of Medicine

Dr. Harzstark graduated from Stanford University School Of Medicine in 2002.

  1. Medical schoolStanford University School Of Medicine
  2. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Andrea Harzstark accepts plans from 2 insurance carriers

Dr. Harzstark is in network with 2 carriers, including Elevance and Kaiser Permanente. EPO plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Elevance
  • Kaiser Permanente

Plan types Dr. Harzstark accepts, by number of carriers

  1. EPO2
  2. HMO2
  3. POS2
  4. Medicare1
  5. PPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Andrea Harzstark'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)
Awards and committee rolesDmand AI Professional Profile Data
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. Andrea Harzstark

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. Andrea Harzstark's NPI number?

Dr. Andrea Harzstark's NPI number is 1871766576. It was assigned on April 2, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Andrea Harzstark?

Dr. Andrea Harzstark is a hematologist and oncologist in San Francisco, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Andrea Harzstark practice?

Dr. Harzstark practices at 2238 Geary Blvd, San Francisco, CA 94115. Dr. Harzstark's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. Dmand AI also links Dr. Harzstark to 1 medical group.

What is Dr. Andrea Harzstark's office phone number?

The practice phone on file for Dr. Harzstark is (415) 833-3700.

What is Dr. Andrea Harzstark's medical license number?

Dr. Harzstark holds California license A86175, one of the licenses on file in 3 states.

Which states has Dr. Andrea Harzstark been licensed in?

Dmand AI has state licenses on file for Dr. Harzstark in California (2004 to 2026), Georgia (2025 to 2027) and Hawaii (2025 to 2026).

Which hospitals is Dr. Andrea Harzstark affiliated with?

Dr. Harzstark is affiliated with UCSF Langley Porter Psychiatric Hospital.

What medical group is Dr. Andrea Harzstark part of?

Dr. Harzstark is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Harzstark to 1 more medical group.

Is Dr. Andrea Harzstark board certified?

Yes. Dr. Harzstark is board certified in medical oncology by the American Board of Internal Medicine.

Where did Dr. Andrea Harzstark go to medical school?

Dr. Harzstark graduated from Stanford University School Of Medicine in 2002.

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What drugs does Dr. Andrea Harzstark prescribe most?

In 2024 Medicare Part D data, Dr. Harzstark's most prescribed drugs by claims were Abiraterone Acetate, Prednisone and Nubeqa.

How long has Dr. Andrea Harzstark been practicing?

Dr. Harzstark graduated from medical school in 2002, 24 years ago.

Does Dr. Andrea Harzstark do research?

Dmand AI links 43 publications to Dr. Harzstark, published from 2009 to 2024. Dr. Harzstark has worked on 5 clinical trials.

Who does Dr. Andrea Harzstark publish with?

Dr. Harzstark's most frequent co-authors are Eric J. Small, MD (14 shared papers), Jonathan Eric Rosenberg, MD (6 shared papers) and Terence Ware Friedlander, MS (4 shared papers).

What insurance does Dr. Andrea Harzstark accept?

Dr. Harzstark is in network with 2 carriers, including Elevance and Kaiser Permanente. EPO plans come from the most carriers, 2. Check the plan with the practice before a visit.

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