Dr. Aaron Daniel Tward, MD, PhD

  • San Francisco, CA
  • General surgeon
NPI1194921205PAC ID6305006313
Medicare services, 2022
37
Part D claims, 2022
27
Publications
36
MIPS score, 2024
87
Hospital affiliations
1
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 7 affiliations

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Dr. Aaron Daniel Tward is a general surgeon in San Francisco, California

Dr. Tward practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Dr. Tward's NPI, 1194921205, was assigned on June 25, 2007. Dr. Tward graduated from UCSF School of Medicine in 2007. Dr. Tward's Massachusetts license number on file is BB5204071-AT61.

NPI and contact details
Medicare PAC ID
6305006313
NPI enumeration date
June 25, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(415) 353-2733
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
45
Medical school graduation
2007

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

Dr. Aaron Daniel Tward practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Dr. Tward's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Source: Dmand AI Affiliation Data

Dr. Aaron Daniel Tward is affiliated with 4 sites of care and 3 medical groups

Dr. Tward's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Tward to 3 more group practices and clinics and 2 medical groups, each named with a free account.

See all 7 affiliations for Dr. Tward

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

Dmand AI tracks the EHR system at Dr. Aaron Daniel Tward's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tward practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Helen Diller Medical Center at Parnassus HeightsAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Aaron Daniel Tward is one of 2,926 general surgeons in California

Surgery is Dr. Tward's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Tward is board certified in neurotology by the American Board of Otolaryngology - Head and Neck Surgery. Dmand AI has Dr. Tward's licenses on file in 2 states: Massachusetts and California.

Specialties and state licenses

  • Surgery, MassachusettsPrimaryLicense BB5204071-AT61 · 2013 to 2014 · taxonomy 208600000X
  • California license2014 to 2026

General surgeons near Dr. Tward

Counts of general surgeons 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. Aaron Daniel Tward billed Medicare for 37 services in 2022

CMS data shows 37 Medicare services from Dr. Tward across 2 procedure codes in 2022. Medicare paid $1,722 for them. Every service was in an office.

Medicare services, 202237
Paid by Medicare$1,722
Procedure codes2

Dr. Tward's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Office and hospital visits
2021: 1572022: 2187%
Surgery
2021: 692022: 1677%
Tests and treatments
2021: 532022: 0100%

Dr. Tward compared with the California median for general surgeons, 2022

  • Dr. Tward
  • California median
Medicare services
37vs 16678% below
Part D claims
27vs 3421% below

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Tward'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.

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

Dr. Aaron Daniel Tward's patients have a median age of 69

Across all payers, Dmand AI patient panel data puts Dr. Tward's median patient age at 69, with 56% women.

Dr. Tward's patients across all payers

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

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women56%
  • Men42%

Source: Dmand AI Patient Panel Data

Dr. Aaron Daniel Tward wrote 27 Medicare Part D claims in 2022

In 2022, Dr. Tward wrote 27 Medicare Part D claims. They cover 2 drugs, with $2,212 in total drug cost. In 2021, CMS named 84 claims across 4 drugs.

Part D claims, 202227
Drugs named by CMS2
Total drug cost$2,212

Dr. Tward's most prescribed drugs by claims, 2022

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

Part D claims for drugs CMS names, 2021 to 2022

  • 2021
  • 2022
Claims for drugs CMS names
2021: 842022: 2768%

Drugs named by CMS: 2 in 2022, 4 in 2021.

See all prescribing by Dr. Tward

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

Dr. Aaron Daniel Tward scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Tward for performance year 2024, reported as part of a group. Dr. Tward accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Tward's MIPS scores, performance year 2024

  • 87of 100Final score
  • 86.8of 100Quality
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Aaron Daniel Tward has 36 publications on record

Dmand AI links 36 papers to Dr. Tward, published from 2006 to 2023. 2023 was the busiest year, with 3. The most frequent topics are Aryldialkylphosphatase, Mice, Transgenic and Gene Expression Regulation, Neoplastic. Dr. Tward has published most often in Nat Commun. Dr. Tward's most frequent co-authors are Michael W. McDermott, MD, Divya Chari, MD and Kirk D. Jones, MD.

Papers36
Years published2006 to 2023

Dr. Tward's papers by year, 2011 to 2023

Topics Dr. Tward writes about most

  • Aryldialkylphosphatase
  • Mice, Transgenic
  • Gene Expression Regulation, Neoplastic
  • Cell Differentiation
  • Cell Proliferation
  • Liver Neoplasms, Experimental
  • Mice, Knockout
  • beta Catenin

Dr. Tward's most frequent co-authors

Recent publications by Dr. Tward

See all 36 publications and co-authors

See who Dr. Tward researches with

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

How network discovery works

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

Dr. Aaron Daniel Tward received $1,659 in industry payments from 2016 to 2025

CMS Open Payments shows 18 general payments to Dr. Tward from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Cochlear Ltd paid the most, $649. It also lists 3 research payments totaling $1,013 in 2019.

General payments to Dr. Tward by program year, 2016 to 2025

Companies that paid Dr. Tward the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Tward

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

Dr. Aaron Daniel Tward has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Tward.

Awards and honors for Dr. Tward

  1. Undated
    • AAO-HNS Fellow
    • ACS Fellow

Source: Dmand AI Professional Profile Data

Dr. Aaron Daniel Tward graduated from UCSF School of Medicine

Dr. Tward graduated from UCSF School of Medicine in 2007. Dr. Tward is a member of NHS and ACS.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in neurotologyAmerican Board of Otolaryngology - Head and Neck Surgery
  3. Board certified in otolaryngologyAmerican Board of Otolaryngology - Head and Neck Surgery

Source: Dmand AI Professional Profile Data

Dr. Aaron Daniel Tward accepts plans from 8 insurance carriers

Dr. Tward is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • Molina

Plan types Dr. Tward accepts, by number of carriers

  1. Medicare7
  2. PPO5
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Aaron Daniel Tward'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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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)
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. Aaron Daniel Tward

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. Aaron Daniel Tward's NPI number?

Dr. Aaron Daniel Tward's NPI number is 1194921205. It was assigned on June 25, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Aaron Daniel Tward?

Dr. Aaron Daniel Tward is a general surgeon in San Francisco, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Aaron Daniel Tward practice?

Dr. Tward practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Tward's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Tward to 3 group practices and clinics and 2 medical groups.

What is Dr. Aaron Daniel Tward's office phone number?

The practice phone on file for Dr. Tward is (415) 353-2733.

What is Dr. Aaron Daniel Tward's medical license number?

Dr. Tward's Massachusetts license number on file is BB5204071-AT61, one of the licenses on file in 2 states.

Which states has Dr. Aaron Daniel Tward been licensed in?

Dmand AI has state licenses on file for Dr. Tward in Massachusetts (2013 to 2014) and California (2014 to 2026).

Which hospitals is Dr. Aaron Daniel Tward affiliated with?

Dr. Tward practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.

What medical group is Dr. Aaron Daniel Tward part of?

Dr. Tward is linked to UCSF Pediatrics. Dmand AI links Dr. Tward to 2 more medical groups.

Does Dr. Aaron Daniel Tward accept Medicare?

Yes. CMS data shows Dr. Tward billed Medicare for 37 services in 2022, and Dr. Tward accepts Medicare assignment.

What is Dr. Aaron Daniel Tward's MIPS score?

Dr. Tward's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

Is Dr. Aaron Daniel Tward board certified?

Yes. Dr. Tward is board certified in neurotology by the American Board of Otolaryngology - Head and Neck Surgery.

What services does Dr. Aaron Daniel Tward bill to Medicare?

In 2022, Dr. Tward's most billed Medicare services were office visit, established patient (99214) and surgery: ear (69210).

Where did Dr. Aaron Daniel Tward go to medical school?

Dr. Tward graduated from UCSF School of Medicine in 2007.

What drugs does Dr. Aaron Daniel Tward prescribe most?

In 2022 Medicare Part D data, Dr. Tward's most prescribed drugs by claims were Ciprofloxacin HCl and Tobramycin-Dexamethasone.

Has Dr. Aaron Daniel Tward received payments from drug or device companies?

CMS Open Payments shows $1,659 in general payments to Dr. Tward from 6 companies from 2016 to 2025. The largest total came from Cochlear Ltd.

How long has Dr. Aaron Daniel Tward been practicing?

Dr. Tward graduated from medical school in 2007, 19 years ago.

Does Dr. Aaron Daniel Tward do research?

Dmand AI links 36 publications to Dr. Tward, published from 2006 to 2023.

Who does Dr. Aaron Daniel Tward publish with?

Dr. Tward's most frequent co-authors are Michael W. McDermott, MD (3 shared papers), Divya Chari, MD (2 shared papers) and Kirk D. Jones, MD (2 shared papers).

What insurance does Dr. Aaron Daniel Tward accept?

Dr. Tward is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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