Dr. Theodore Robertson Pak, MD, PhD
- Medicare services, 2024
- 28
- Medicare patients, 2024
- 19
- Part D claims, 2024
- 106
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Theodore Robertson Pak is an infectious disease specialist in Orange, California
Dr. Pak practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Pak's NPI, 1013476100, was assigned on March 18, 2019. Dr. Pak graduated from Icahn School of Medicine at Mount Sinai in 2019. Dr. Pak holds Massachusetts license 291119.
- NPI
- 1013476100NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042549099
- NPI enumeration date
- March 18, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Theodore Robertson Pak practices at UCI Health - Orange in Orange, California
Dr. Pak's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. Theodore Robertson Pak is affiliated with 1 site of care and 1 medical group
Dr. Pak's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is UCI Health Physicians.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Theodore Robertson Pak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Theodore Robertson Pak is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Pak's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Pak is licensed in Massachusetts.
Specialties and state licenses
- Infectious disease, MassachusettsPrimary
Infectious disease specialists near Dr. Pak
Counts of infectious disease specialists 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. Theodore Robertson Pak billed Medicare for 28 services in 2024
CMS data shows 28 Medicare services from Dr. Pak across 1 procedure code in 2024, for 19 Medicare patients. Medicare paid $2,766 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pak compared with the California median for infectious disease specialists, 2024
- Dr. Pak
- California median
- Medicare services
- 28vs 42993% below
- Medicare patients
- 19vs 18089% below
- Part D claims
- 46vs 11961% below
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Pak'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pak and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Theodore Robertson Pak treated 19 Medicare patients in 2024, average age 74
CMS counts 19 Medicare patients who saw Dr. Pak in 2024. 75% of them have high blood pressure, and 74% have high cholesterol. Their average risk score is 2.65, 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. Pak's median patient age at 60, with 51% women.
Chronic conditions among Dr. Pak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Atrial fibrillation58%
- Chronic kidney disease58%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Theodore Robertson Pak wrote 106 Medicare Part D claims in 2024
In 2024, Dr. Pak wrote 106 Medicare Part D claims for 18 patients. 82% of them were for generic drugs. CMS names the drug for 46 of them, across 3 drugs with 11 or more claims each, at $61,593 in total drug cost. In 2023, CMS named 89 claims across 5 drugs.
Dr. Pak's Part D claims by kind of drug, 2024
- Generic87 claims82%
- Brand-name19 claims18%
Dr. Pak'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. Pak's Part D claims, 2024
- Antibiotics32%34 of 106 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: 892024: 4648%
Drugs named by CMS: 3 in 2024, 5 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
How Dr. Theodore Robertson Pak takes part in Medicare
Dr. Pak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Theodore Robertson Pak graduated from Icahn School of Medicine at Mount Sinai
Dr. Pak graduated from Icahn School of Medicine at Mount Sinai in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Theodore Robertson Pak'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) |
| 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. Theodore Robertson Pak
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What is Dr. Theodore Robertson Pak's NPI number?
Dr. Theodore Robertson Pak's NPI number is 1013476100. It was assigned on March 18, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Theodore Robertson Pak?
Dr. Theodore Robertson Pak is an infectious disease specialist in Orange, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Theodore Robertson Pak practice?
Dr. Pak practices at 101 City Drive South, Orange, CA 92868. Dr. Pak's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine.
What is Dr. Theodore Robertson Pak's office phone number?
The practice phone on file for Dr. Pak is (714) 456-7890.
What is Dr. Theodore Robertson Pak's medical license number?
Dr. Pak holds Massachusetts license 291119.
Which hospitals is Dr. Theodore Robertson Pak affiliated with?
Dr. Pak practices at UCI Health - Orange in Orange, California.
What medical group is Dr. Theodore Robertson Pak part of?
Dr. Pak is linked to UCI Health Physicians.
Does Dr. Theodore Robertson Pak accept Medicare?
Yes. CMS data shows Dr. Pak billed Medicare for 28 services in 2024, and Dr. Pak accepts Medicare assignment.
How many Medicare patients does Dr. Theodore Robertson Pak see?
CMS counts 19 Medicare patients who saw Dr. Pak in 2024, with an average age of 74.
What services does Dr. Theodore Robertson Pak bill to Medicare?
In 2024, Dr. Pak's most billed Medicare services were hospital inpatient care (99233).
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Where did Dr. Theodore Robertson Pak go to medical school?
Dr. Pak graduated from Icahn School of Medicine at Mount Sinai in 2019.
What drugs does Dr. Theodore Robertson Pak prescribe most?
In 2024 Medicare Part D data, Dr. Pak's most prescribed drugs by claims were Dovato, Atorvastatin Calcium and Amlodipine Besylate.
How long has Dr. Theodore Robertson Pak been practicing?
Dr. Pak graduated from medical school in 2019, 7 years ago.
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