Dr. Errol Omaar Ozdalga, MD, MS
- Medicare services, 2024
- 517
- Medicare patients, 2024
- 140
- Part D claims, 2024
- 199
- Publications
- 16
- MIPS score, 2024
- 89
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ozdalga's professional email, personal email and mobile number
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Dr. Errol Omaar Ozdalga is an internist in Stanford, California
Dr. Ozdalga practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Ozdalga's NPI, 1982851499, was assigned on August 26, 2008. Dr. Ozdalga graduated from New York Medical College in 2008. Dr. Ozdalga holds California license A108902.
- NPI
- 1982851499NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345418364
- NPI enumeration date
- August 26, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Errol Omaar Ozdalga practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Ozdalga's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Errol Omaar Ozdalga is affiliated with 2 sites of care and 2 medical groups
Dr. Ozdalga's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Ozdalga to 1 more hospital and 1 medical group, each named with a free account. Dr. Ozdalga'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. Errol Omaar Ozdalga's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ozdalga practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Errol Omaar Ozdalga is one of 16,751 internists in California
Internal medicine is Dr. Ozdalga's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ozdalga is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ozdalga is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure, cardiac arrhythmia, congestive heart failure, dementia, electrolyte disorders, gastrointestinal infection, gastrointestinal inflammation and heart attack among the conditions Dr. Ozdalga treats.
Internists near Dr. Ozdalga
Counts of internists 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. Errol Omaar Ozdalga billed Medicare for 517 services in 2024
CMS data shows 517 Medicare services from Dr. Ozdalga across 3 procedure codes in 2024, for 140 Medicare patients. Medicare paid $58,887 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ozdalga compared with the California median for internists, 2024
- Dr. Ozdalga
- California median
- Medicare services
- 517vs 36143% above
- Medicare patients
- 140vs 1517% below
- Part D claims
- 53vs 42187% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ozdalga'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Errol Omaar Ozdalga treated 140 Medicare patients in 2024, average age 77
CMS counts 140 Medicare patients who saw Dr. Ozdalga in 2024. The largest group is 85 and over, with 44 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.86, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ozdalga's median patient age at 57, with 40% women.
Dr. Ozdalga's Medicare patients by age, 2024
Dr. Ozdalga's Medicare patients by sex, 2024
- Women7050%
- Men7050%
Chronic conditions among Dr. Ozdalga's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Chronic kidney disease55%
- Arthritis46%
- Ischemic heart disease46%
- Heart failure45%
- Alzheimer's and dementia43%
- Diabetes43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ozdalga's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Errol Omaar Ozdalga wrote 199 Medicare Part D claims in 2024
In 2024, Dr. Ozdalga wrote 199 Medicare Part D claims for 61 patients. 84% of them were for generic drugs. CMS names the drug for 53 of them, across 2 drugs with 11 or more claims each, at $16,971 in total drug cost.
Dr. Ozdalga's Part D claims by kind of drug, 2024
- Generic167 claims84%
- Brand-name and other32 claims16%
Dr. Ozdalga'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. Ozdalga's Part D claims, 2024
- Antibiotics29%58 of 199 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Errol Omaar Ozdalga scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Ozdalga for performance year 2024, reported as part of a group. Dr. Ozdalga accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ozdalga's MIPS scores, performance year 2024
- 89of 100Final score
- 87.1of 100Quality
- 100of 100Promoting Interoperability
- 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. Errol Omaar Ozdalga has 16 publications on record
Dmand AI links 16 papers to Dr. Ozdalga, published from 2011 to 2022. 2016 was the busiest year, with 5. The most frequent topics are Clinical Competence, Physical Examination and Education, Medical. Dr. Ozdalga has published most often in JAMA. Dr. Ozdalga's most frequent co-authors are John F. Kugler, MD, Neera Khilnani Ahuja, MD and John D. Kugler, MD.
Dr. Ozdalga's papers by year, 2011 to 2022
Topics Dr. Ozdalga writes about most
- Clinical Competence
- Physical Examination
- Education, Medical
- Physician-Patient Relations
- Point-of-Care Systems
- Teaching
Dr. Ozdalga's most frequent co-authors
- John F. Kugler, MD4 shared papers
- Neera Khilnani Ahuja, MD3 shared papers
- John D. Kugler, MD3 shared papers
Recent publications by Dr. Ozdalga
See who Dr. Ozdalga researches with
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Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Errol Omaar Ozdalga graduated from New York Medical College
Dr. Ozdalga graduated from New York Medical College in 2008.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Errol Omaar Ozdalga accepts plans from 7 insurance carriers
Dr. Ozdalga is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Ozdalga accepts, by number of carriers
- Medicare6
- PPO6
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Errol Omaar Ozdalga'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Errol Omaar Ozdalga
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. Errol Omaar Ozdalga's NPI number?
Dr. Errol Omaar Ozdalga's NPI number is 1982851499. It was assigned on August 26, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Errol Omaar Ozdalga?
Dr. Errol Omaar Ozdalga is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Errol Omaar Ozdalga practice?
Dr. Ozdalga practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Ozdalga's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Ozdalga to 1 hospital and 1 medical group.
What is Dr. Errol Omaar Ozdalga's office phone number?
The practice phone on file for Dr. Ozdalga is (650) 723-4000.
What is Dr. Errol Omaar Ozdalga's medical license number?
Dr. Ozdalga holds California license A108902.
Which hospitals is Dr. Errol Omaar Ozdalga affiliated with?
Dr. Ozdalga practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Ozdalga to 1 more hospital.
What medical group is Dr. Errol Omaar Ozdalga part of?
Dr. Ozdalga is linked to Stanford Health Care. Dmand AI links Dr. Ozdalga to 1 more medical group.
Does Dr. Errol Omaar Ozdalga accept Medicare?
Yes. CMS data shows Dr. Ozdalga billed Medicare for 517 services in 2024, and Dr. Ozdalga accepts Medicare assignment.
What is Dr. Errol Omaar Ozdalga's MIPS score?
Dr. Ozdalga's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Errol Omaar Ozdalga see?
CMS counts 140 Medicare patients who saw Dr. Ozdalga in 2024, with an average age of 77.
Show 8 more questionsShow fewer questions
Is Dr. Errol Omaar Ozdalga board certified?
Yes. Dr. Ozdalga is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Errol Omaar Ozdalga bill to Medicare?
In 2024, Dr. Ozdalga's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. Errol Omaar Ozdalga go to medical school?
Dr. Ozdalga graduated from New York Medical College in 2008.
What drugs does Dr. Errol Omaar Ozdalga prescribe most?
In 2024 Medicare Part D data, Dr. Ozdalga's most prescribed drugs by claims were Cefepime HCl and Eliquis.
How long has Dr. Errol Omaar Ozdalga been practicing?
Dr. Ozdalga graduated from medical school in 2008, 18 years ago.
Does Dr. Errol Omaar Ozdalga do research?
Dmand AI links 16 publications to Dr. Ozdalga, published from 2011 to 2022.
Who does Dr. Errol Omaar Ozdalga publish with?
Dr. Ozdalga's most frequent co-authors are John F. Kugler, MD (4 shared papers), Neera Khilnani Ahuja, MD (3 shared papers) and John D. Kugler, MD (3 shared papers).
What insurance does Dr. Errol Omaar Ozdalga accept?
Dr. Ozdalga is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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