Dr. Mark Freijat, MD
- Medicare services, 2024
- 31,416
- Medicare patients, 2024
- 640
- Part D claims, 2024
- 1,692
- Hospital affiliations
- 5
- Industry payments
- $10,303
- Practice address
- 350 West Thomas Road, Phoenix, AZ 85013
- Practice phone
- Call (602) 406-8225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Freijat'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. Mark Freijat is a rheumatologist in Phoenix, Arizona
Dr. Freijat practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health.
Dr. Freijat's NPI, 1124337621, was assigned on September 30, 2010. Dr. Freijat holds Arizona license 47624.
- NPI
- 1124337621NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517101843
- NPI enumeration date
- September 30, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (602) 406-8225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- 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. Mark Freijat practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona
Dr. Freijat's primary practice is Dignity Health St. Joseph's Hospital and Medical Center, at 350 West Thomas Road, Phoenix, AZ 85013 in Maricopa County. The practice phone is (602) 406-8225.
- Dignity Health St. Joseph's Hospital and Medical Center350 West Thomas Road, Phoenix, AZ 85013 · Maricopa CountyPhone(602) 406-8225
Source: Dmand AI Affiliation Data
Dr. Mark Freijat is affiliated with 6 sites of care and 2 medical groups
Dr. Freijat's primary practice is Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health. Dr. Freijat is also affiliated with HonorHealth John C. Lincoln Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Freijat to 3 more hospitals, 1 physician office and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Freijat's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Freijat practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health St. Joseph's Hospital and Medical Center | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Freijat is one of 98 rheumatologists in Arizona
Rheumatology is Dr. Freijat's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Freijat is board certified in rheumatology by the American Board of Internal Medicine. Dmand AI has Dr. Freijat's licenses on file in 3 states: Arizona, California and Indiana.
Specialties and state licenses
- Rheumatology, ArizonaPrimary
- Hospitalist, California
- Indiana license
Rheumatologists near Dr. Freijat
Counts of rheumatologists 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. Mark Freijat billed Medicare for 31,416 services in 2024
CMS data shows 31,416 Medicare services from Dr. Freijat across 17 procedure codes in 2024, for 640 Medicare patients. Medicare paid $451,284 for them.
Dr. Freijat's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 02024: 29,225
- Office and hospital visits
- 2023: 1,0212024: 1,49847%
- Imaging
- 2023: 2832024: 21923%
- Other services
- 2023: 02024: 195
- Tests and treatments
- 2023: 232024: 190726%
- Surgery
- 2023: 792024: 8913%
Where Dr. Freijat's Medicare services took place, 2024
- In an office31,02199%
- In a facility3951%
Dr. Freijat compared with the Arizona median for rheumatologists, 2024
- Dr. Freijat
- Arizona median
- Medicare services
- 31,416vs 5,2486.0 times
- Medicare patients
- 640vs 36675% above
- Part D claims
- 1,527vs 1,20127% above
Medians across 98 rheumatologists in Arizona with Dmand AI profiles that report each measure.
Dr. Freijat'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. Freijat and other rheumatologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Freijat treated 640 Medicare patients in 2024, average age 75
CMS counts 640 Medicare patients who saw Dr. Freijat in 2024. The largest group is 65 to 74, with 288 patients. 75% of them have arthritis, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Freijat's median patient age at 66, with 69% women.
Dr. Freijat's Medicare patients by age, 2024
Dr. Freijat's Medicare patients by sex, 2024
- Women46473%
- Men17628%
Chronic conditions among Dr. Freijat's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure70%
- Osteoporosis38%
- Ischemic heart disease31%
- Anxiety29%
- Chronic kidney disease26%
- Atrial fibrillation21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Freijat's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women69%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Freijat wrote 1,692 Medicare Part D claims in 2024
In 2024, Dr. Freijat wrote 1,692 Medicare Part D claims for 424 patients. 90% of them were for generic drugs. CMS names the drug for 1,527 of them, across 31 drugs with 11 or more claims each, at $940,815 in total drug cost. In 2023, CMS named 1,401 claims across 24 drugs.
Dr. Freijat's Part D claims by kind of drug, 2024
- Generic1,518 claims90%
- Brand-name174 claims10%
Dr. Freijat'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. Freijat's Part D claims, 2024
- Opioids4%64 of 1,692 claims
- Antibiotics1%17 of 1,692 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: 1,4012024: 1,5279%
Drugs named by CMS: 31 in 2024, 24 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. Mark Freijat ranks in the 62nd percentile for skin biopsy in Medicare
Dr. Freijat accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Freijat as offering telehealth. CMS counts 16 procedures of skin biopsy by Dr. Freijat, more than 62% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Freijat ranks in Medicare procedure volume
- Skin biopsy
- 62nd percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark Freijat received $10,303 in industry payments from 2016 to 2025
CMS Open Payments shows 451 general payments to Dr. Freijat from 34 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Amgen Inc. paid the most, $2,349.
General payments to Dr. Freijat by program year, 2016 to 2025
General payments to Dr. Freijat by kind, 2016 to 2025
- Food and beverage$10,04798%
- Education$2562%
Companies that paid Dr. Freijat 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. Mark Freijat is board certified in rheumatology
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Freijat'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)Doctors and Clinicians Utilization Data (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. Mark Freijat
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. Mark Freijat's NPI number?
Dr. Mark Freijat's NPI number is 1124337621. It was assigned on September 30, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Freijat?
Dr. Mark Freijat is a rheumatologist in Phoenix, Arizona. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Mark Freijat practice?
Dr. Freijat practices at 350 West Thomas Road, Phoenix, AZ 85013. Dr. Freijat's primary practice is Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health. Dmand AI also links Dr. Freijat to 3 hospitals, 1 physician office and 1 medical group.
What is Dr. Mark Freijat's office phone number?
The practice phone on file for Dr. Freijat is (602) 406-8225.
What is Dr. Mark Freijat's medical license number?
Dr. Freijat holds Arizona license 47624, one of the licenses on file in 3 states.
Which states has Dr. Mark Freijat been licensed in?
Dmand AI has state licenses on file for Dr. Freijat in Arizona, California and Indiana.
Which hospitals is Dr. Mark Freijat affiliated with?
Dr. Freijat practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona. Dr. Freijat is also affiliated with HonorHealth John C. Lincoln Medical Center. Dmand AI links Dr. Freijat to 3 more hospitals.
What medical group is Dr. Mark Freijat part of?
Dr. Freijat is linked to UC San Diego Health. Dmand AI links Dr. Freijat to 1 more medical group.
Does Dr. Mark Freijat accept Medicare?
Yes. CMS data shows Dr. Freijat billed Medicare for 31,416 services in 2024, and Dr. Freijat accepts Medicare assignment.
Does Dr. Mark Freijat offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Freijat as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Mark Freijat see?
CMS counts 640 Medicare patients who saw Dr. Freijat in 2024, with an average age of 75.
Is Dr. Mark Freijat board certified?
Yes. Dr. Freijat is board certified in rheumatology by the American Board of Internal Medicine.
What services does Dr. Mark Freijat bill to Medicare?
In 2024, Dr. Freijat's most billed Medicare services were injected or infused drug (J0717), injected or infused drug (J3111) and injected or infused drug (J0129).
What drugs does Dr. Mark Freijat prescribe most?
In 2024 Medicare Part D data, Dr. Freijat's most prescribed drugs by claims were Methotrexate, Prednisone and Hydroxychloroquine Sulfate.
Has Dr. Mark Freijat received payments from drug or device companies?
CMS Open Payments shows $10,303 in general payments to Dr. Freijat from 34 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Mark Freijat been practicing?
Dr. Freijat graduated from medical school in 2007, 19 years ago.
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