Dr. Grant William Jirka, MD
- Part D claims, 2024
- 120
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $8,091
- State licenses
- 2
- Practice address
- 2051 Marengo St, Room C2K100, Los Angeles, CA 90033
- Practice phone
- Call (323) 226-2800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Jirka's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Grant William Jirka is a hematologist and oncologist in Los Angeles, California
Dr. Jirka practices at Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
Dr. Jirka's NPI, 1326667346, was assigned on April 9, 2020. Dr. Jirka graduated from UNMC in 2020. Dr. Jirka's California license number on file is 187091.
- NPI
- 1326667346NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517398175
- NPI enumeration date
- April 9, 2020
- NPI status
- Active
- Practice phone
- (323) 226-2800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Grant William Jirka practices at Los Angeles General Medical Center in Los Angeles, California
Dr. Jirka's primary practice is Los Angeles General Medical Center, at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 226-2800.
- Los Angeles General Medical Center2051 Marengo St, Room C2K100, Los Angeles, CA 90033 · Los Angeles CountyPhone(323) 226-2800
Source: Dmand AI Affiliation Data
Dr. Grant William Jirka is affiliated with 1 site of care
Dr. Jirka's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles. Dr. Jirka's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Grant William Jirka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Jirka practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Los Angeles General Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Grant William Jirka is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Jirka's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Jirka is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Jirka's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
- Internal medicine, Pennsylvania
Hematologists and oncologists near Dr. Jirka
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. Grant William Jirka's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Jirka's median patient age at 62, with 56% women.
Dr. Jirka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women56%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Grant William Jirka wrote 120 Medicare Part D claims in 2024
In 2024, Dr. Jirka wrote 120 Medicare Part D claims for 53 patients. 74% of them were for generic drugs. CMS names the drug for 58 of them, across 3 drugs with 11 or more claims each, at $1,108 in total drug cost. In 2022, CMS named 93 claims across 5 drugs.
Dr. Jirka's Part D claims by kind of drug, 2024
- Generic89 claims74%
- Brand-name31 claims26%
Dr. Jirka's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 932023: 5838%
Drugs named by CMS: 3 in 2023, 5 in 2022.
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. Grant William Jirka has 1 publication on record
Dmand AI links 1 paper to Dr. Jirka in 2014.
Recent publications by Dr. Jirka
See who Dr. Jirka researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Jirka works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Grant William Jirka received $8,091 in industry payments from 2023 to 2025
CMS Open Payments shows 222 general payments to Dr. Jirka from 45 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 91% of the total. Abbvie Inc. paid the most, $729.
General payments to Dr. Jirka by program year, 2023 to 2025
General payments to Dr. Jirka by kind, 2023 to 2025
- Food and beverage$7,36891%
- Education$5487%
- Consulting fees$1752%
Companies that paid Dr. Jirka the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Grant William Jirka has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Jirka, most recently LeeRoy Meyer Most Outstanding Internal Medicine Student in 2020.
Awards and honors for Dr. Jirka
- 2020
- LeeRoy Meyer Most Outstanding Internal Medicine Student
- 2017
- Graduate of The Academy for Emerging Leaders in Patient Safety: The Telluride Experience
- 2016
- College of Medicine Research Scholar
- Grand Challenge Scholar
Source: Dmand AI Professional Profile Data
Dr. Grant William Jirka graduated from UNMC
Dr. Jirka graduated from UNMC in 2020. Dr. Jirka is a member of ASCO and ASH.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Grant William Jirka's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Grant William Jirka
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. Grant William Jirka's NPI number?
Dr. Grant William Jirka's NPI number is 1326667346. It was assigned on April 9, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Grant William Jirka?
Dr. Grant William Jirka is a hematologist and oncologist in Los Angeles, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Grant William Jirka practice?
Dr. Jirka practices at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033. Dr. Jirka's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.
What is Dr. Grant William Jirka's office phone number?
The practice phone on file for Dr. Jirka is (323) 226-2800.
What is Dr. Grant William Jirka's medical license number?
Dr. Jirka's California license number on file is 187091, one of the licenses on file in 2 states.
Which states has Dr. Grant William Jirka been licensed in?
Dmand AI has state licenses on file for Dr. Jirka in California (2023 to 2025) and Pennsylvania (2020 to 2023).
Which hospitals is Dr. Grant William Jirka affiliated with?
Dr. Jirka practices at Los Angeles General Medical Center in Los Angeles, California.
Is Dr. Grant William Jirka board certified?
Yes. Dr. Jirka is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Grant William Jirka go to medical school?
Dr. Jirka graduated from UNMC in 2020.
What drugs does Dr. Grant William Jirka prescribe most?
In 2023 Medicare Part D data, Dr. Jirka's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Gabapentin.
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Has Dr. Grant William Jirka received payments from drug or device companies?
CMS Open Payments shows $8,091 in general payments to Dr. Jirka from 45 companies from 2023 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Grant William Jirka been practicing?
Dr. Jirka graduated from medical school in 2020, 6 years ago.
Does Dr. Grant William Jirka do research?
Dmand AI links 1 publication to Dr. Jirka.
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