James Michael Mast, PA-C
- Medicare patients, 2024
- 70
- MIPS score, 2024
- 82
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 5601 Loch Raven Boulevard, Baltimore, MD 21239
- Practice phone
- Call (443) 444-3902
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find James Mast's professional email, personal email and mobile number
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James Michael Mast is a physician assistant in Baltimore, Maryland
James Mast practices at MedStar Good Samaritan Hospital in Baltimore, Maryland, part of MedStar Health.
James Mast's NPI, 1093482085, was assigned on August 26, 2021. James Mast holds Maryland license C0008150.
- NPI
- 1093482085NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577952175
- NPI enumeration date
- August 26, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (443) 444-3902
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James Michael Mast practices at MedStar Good Samaritan Hospital in Baltimore, Maryland
James Mast's primary practice is MedStar Good Samaritan Hospital, at 5601 Loch Raven Boulevard, Baltimore, MD 21239 in Baltimore City. The practice phone is (443) 444-3902.
- MedStar Good Samaritan Hospital5601 Loch Raven Boulevard, Baltimore, MD 21239 · Baltimore CityPhone(443) 444-3902
Source: Dmand AI Affiliation Data
James Michael Mast is affiliated with 3 sites of care and 1 medical group
James Mast's primary practice is MedStar Good Samaritan Hospital in Baltimore, Maryland, part of MedStar Health. James Mast is also affiliated with MedStar Harbor Hospital. The medical group on file is MedStar Medical Group. Dmand AI also links James Mast to 1 more hospital outpatient department, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at James Michael Mast's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Mast practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Good Samaritan Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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James Michael Mast is one of 2,452 physician assistants in Maryland
Physician assistant is James Mast's primary specialty in the NPI Registry, under taxonomy code 363A00000X. James Mast is licensed in Maryland.
Specialties and state licenses
- Physician assistant, MarylandPrimary
Physician assistants near James Mast
Counts of physician assistants 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
James Michael Mast treated 70 Medicare patients in 2024, average age 69
CMS counts 70 Medicare patients who saw James Mast in 2024. The largest group is 75 to 84, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 3.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts James Mast's median patient age at 67, with 62% women.
James Mast's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
James Mast's Medicare patients by sex, 2024
- Women3753%
- Men3347%
Chronic conditions among James Mast's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders67%
- Depression64%
- Diabetes64%
- Heart failure60%
- Ischemic heart disease59%
- Arthritis56%
Share of Medicare patients with each condition. A patient can have several.
James Mast's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
James Michael Mast scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for James Mast for performance year 2024, reported as part of a group. James Mast accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
James Mast's MIPS scores, performance year 2024
- 82of 100Final score
- 67.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 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
Sources for James Michael Mast'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 DataMedicare Physician & Other Practitioners - 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) |
| 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 James Michael Mast
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James Michael Mast's NPI number?
James Michael Mast's NPI number is 1093482085. It was assigned on August 26, 2021, and it is active in the NPI Registry.
What does James Michael Mast specialize in?
James Michael Mast is a physician assistant in Baltimore, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does James Michael Mast practice?
James Mast practices at 5601 Loch Raven Boulevard, Baltimore, MD 21239. James Mast's primary practice is MedStar Good Samaritan Hospital in Baltimore, Maryland, part of MedStar Health. Dmand AI also links James Mast to 1 hospital outpatient department.
What is James Michael Mast's office phone number?
The practice phone on file for James Mast is (443) 444-3902.
What is James Michael Mast's medical license number?
James Mast holds Maryland license C0008150.
Which hospitals is James Michael Mast affiliated with?
James Mast practices at MedStar Good Samaritan Hospital in Baltimore, Maryland. James Mast is also affiliated with MedStar Harbor Hospital.
What medical group is James Michael Mast part of?
James Mast is linked to MedStar Medical Group.
Does James Michael Mast accept Medicare?
Yes. CMS lists James Mast as accepting Medicare assignment.
What is James Michael Mast's MIPS score?
James Mast's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does James Michael Mast see?
CMS counts 70 Medicare patients who saw James Mast in 2024, with an average age of 69.
How long has James Michael Mast been practicing?
James Mast graduated from medical school in 2021, 5 years ago.
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