Dr. Jamal Julian Zaka, MD
- Medicare services, 2024
- 694
- Medicare patients, 2024
- 377
- Part D claims, 2024
- 298
- MIPS score, 2024
- 92
- Hospital affiliations
- 3
- Practice address
- 400 29th St, Oakland, CA 94609
- Practice phone
- Call (510) 835-5022
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AHi Solutions Sleep Diagnostic Laboratory
Imaging Center - Main Location · Oakland, California
Find Dr. Zaka'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. Jamal Julian Zaka is a pulmonologist in Oakland, California
Dr. Zaka practices at AHi Solutions Sleep Diagnostic Laboratory in Oakland, California.
Dr. Zaka's NPI, 1053581769, was assigned on March 10, 2008. Dr. Zaka graduated from St. George's University School of Medicine in 2002. Dr. Zaka holds California license A113378.
- NPI
- 1053581769NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426128083
- NPI enumeration date
- March 10, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 835-5022
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jamal Julian Zaka practices at AHi Solutions Sleep Diagnostic Laboratory in Oakland, California
Dr. Zaka's primary practice is AHi Solutions Sleep Diagnostic Laboratory, at 400 29th St, Oakland, CA 94609. The practice phone is (510) 835-5022.
- AHi Solutions Sleep Diagnostic Laboratory400 29th St, Oakland, CA 94609Phone(510) 835-5022
Source: Dmand AI Affiliation Data
Dr. Jamal Julian Zaka is affiliated with 8 sites of care and 3 medical groups
Dr. Zaka's primary practice is AHi Solutions Sleep Diagnostic Laboratory in Oakland, California. Dr. Zaka is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is John Muir Health. Dmand AI also links Dr. Zaka to 2 more hospitals, 3 group practices and clinics, 2 medical groups and 1 clinical lab, each named with a free account. Dr. Zaka's employer is on file too: an imaging center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jamal Julian Zaka's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zaka practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AHi Solutions Sleep Diagnostic Laboratory | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jamal Julian Zaka is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Zaka's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Zaka's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists asthma, chronic lung disease, chronic obstructive pulmonary disease (COPD), pleural effusion, sleep apnea and tobacco use among the conditions Dr. Zaka treats.
Pulmonologists near Dr. Zaka
Counts of pulmonologists 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. Jamal Julian Zaka billed Medicare for 694 services in 2024
CMS data shows 694 Medicare services from Dr. Zaka across 8 procedure codes in 2024, for 377 Medicare patients. Medicare paid $121,429 for them. Every service was in an office.
Dr. Zaka's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5642024: 50311%
- Tests and treatments
- 2023: 2382024: 19120%
Dr. Zaka compared with the California median for pulmonologists, 2024
- Dr. Zaka
- California median
- Medicare services
- 694vs 6497% above
- Medicare patients
- 377vs 27239% above
- Part D claims
- 246vs 42142% below
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Zaka's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Zaka?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zaka and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jamal Julian Zaka treated 377 Medicare patients in 2024, average age 73
CMS counts 377 Medicare patients who saw Dr. Zaka in 2024. The largest group is 65 to 74, with 182 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zaka's median patient age at 53, with 50% women.
Dr. Zaka's Medicare patients by age, 2024
Dr. Zaka's Medicare patients by sex, 2024
- Women18349%
- Men19451%
Chronic conditions among Dr. Zaka's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis45%
- Diabetes29%
- Atrial fibrillation27%
- Ischemic heart disease26%
- Asthma22%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zaka's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jamal Julian Zaka wrote 298 Medicare Part D claims in 2024
In 2024, Dr. Zaka wrote 298 Medicare Part D claims for 67 patients. 40% of them were for generic drugs. CMS names the drug for 246 of them, across 8 drugs with 11 or more claims each, at $71,878 in total drug cost. In 2023, CMS named 293 claims across 8 drugs.
Dr. Zaka's Part D claims by kind of drug, 2024
- Generic118 claims40%
- Brand-name180 claims60%
Dr. Zaka'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2932024: 24616%
Drugs named by CMS: 8 in 2024, 8 in 2023.
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
Dr. Jamal Julian Zaka scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Zaka for performance year 2024, reported individually. Dr. Zaka accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Zaka's MIPS scores, performance year 2024
- 92of 100Final score
- 89.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 83of 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jamal Julian Zaka received $1,359 in industry payments from 2016 to 2025
CMS Open Payments shows 62 general payments to Dr. Zaka from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Inspire Medical Systems, Inc. paid the most, $953.
General payments to Dr. Zaka by program year, 2016 to 2025
General payments to Dr. Zaka by kind, 2016 to 2025
- Food and beverage$1,32197%
- Education$383%
Companies that paid Dr. Zaka the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jamal Julian Zaka graduated from St. George's University School of Medicine
Dr. Zaka graduated from St. George's University School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jamal Julian Zaka'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jamal Julian Zaka
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. Jamal Julian Zaka's NPI number?
Dr. Jamal Julian Zaka's NPI number is 1053581769. It was assigned on March 10, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Jamal Julian Zaka?
Dr. Jamal Julian Zaka is a pulmonologist in Oakland, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Jamal Julian Zaka practice?
Dr. Zaka practices at 400 29th St, Oakland, CA 94609. Dr. Zaka's primary practice is AHi Solutions Sleep Diagnostic Laboratory in Oakland, California. Dmand AI also links Dr. Zaka to 2 hospitals, 3 group practices and clinics, 2 medical groups and 1 clinical lab.
What is Dr. Jamal Julian Zaka's office phone number?
The practice phone on file for Dr. Zaka is (510) 835-5022.
What is Dr. Jamal Julian Zaka's medical license number?
Dr. Zaka holds California license A113378, one of the licenses on file in 2 states.
Which states has Dr. Jamal Julian Zaka been licensed in?
Dmand AI has state licenses on file for Dr. Zaka in California and Pennsylvania.
Which hospitals is Dr. Jamal Julian Zaka affiliated with?
Dr. Zaka is affiliated with John Muir Medical Center, Walnut Creek. Dmand AI links Dr. Zaka to 2 more hospitals.
What medical group is Dr. Jamal Julian Zaka part of?
Dr. Zaka is linked to John Muir Health. Dmand AI links Dr. Zaka to 2 more medical groups.
Does Dr. Jamal Julian Zaka accept Medicare?
Yes. CMS data shows Dr. Zaka billed Medicare for 694 services in 2024, and Dr. Zaka accepts Medicare assignment.
What is Dr. Jamal Julian Zaka's MIPS score?
Dr. Zaka's MIPS final score for performance year 2024 is 92 out of 100, reported individually.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Jamal Julian Zaka see?
CMS counts 377 Medicare patients who saw Dr. Zaka in 2024, with an average age of 73.
What services does Dr. Jamal Julian Zaka bill to Medicare?
In 2024, Dr. Zaka's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and nerve and brain test (95800).
Where did Dr. Jamal Julian Zaka go to medical school?
Dr. Zaka graduated from St. George's University School of Medicine in 2002.
What drugs does Dr. Jamal Julian Zaka prescribe most?
In 2024 Medicare Part D data, Dr. Zaka's most prescribed drugs by claims were Albuterol Sulfate Hfa, Trelegy Ellipta and Montelukast Sodium.
Has Dr. Jamal Julian Zaka received payments from drug or device companies?
CMS Open Payments shows $1,359 in general payments to Dr. Zaka from 11 companies from 2016 to 2025. The largest total came from Inspire Medical Systems, Inc.
How long has Dr. Jamal Julian Zaka been practicing?
Dr. Zaka graduated from medical school in 2002, 24 years ago.
Selling to pulmonary disease practices?
See pulmonologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card