Marshall P. Johnson, AAC
- Medicare patients, 2024
- 57
- MIPS score, 2024
- 95
- Hospital affiliations
- 3
- Medical groups
- 3
- State license
- 1
- Practice address
- 80 Jesse Hill, Jr Drive SE, Atlanta, GA 30303
- Practice phone
- Call (404) 616-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marshall Johnson'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.
Marshall P. Johnson is an anesthesiologist assistant in Atlanta, Georgia
Marshall Johnson practices at Grady Memorial Hospital in Atlanta, Georgia, part of The Fulton-DeKalb Hospital Authority.
Marshall Johnson's NPI, 1720429962, was assigned on July 16, 2013. Marshall Johnson graduated from Emory University School of Medicine in 2013. Marshall Johnson holds Georgia license 6923.
- NPI
- 1720429962NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648405548
- NPI enumeration date
- July 16, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (404) 616-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marshall P. Johnson practices at Grady Memorial Hospital in Atlanta, Georgia
Marshall Johnson's primary practice is Grady Memorial Hospital, at 80 Jesse Hill, Jr Drive SE, Atlanta, GA 30303 in Fulton County. The practice phone is (404) 616-1000.
- Grady Memorial Hospital80 Jesse Hill, Jr Drive SE, Atlanta, GA 30303 · Fulton CountyPhone(404) 616-1000
Source: Dmand AI Affiliation Data
Marshall P. Johnson is affiliated with 3 sites of care and 3 medical groups
Marshall Johnson's primary practice is Grady Memorial Hospital in Atlanta, Georgia, part of The Fulton-DeKalb Hospital Authority. Marshall Johnson is also affiliated with Emory University Hospital. The medical group on file is Emory Clinic. Dmand AI also links Marshall Johnson to 1 more hospital and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marshall P. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marshall Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Grady Memorial Hospital | Available with a free account |
| +2 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 The Fulton-DeKalb Hospital Authority and 6.2K+ hospitals, with verified contacts in the same login.
Marshall P. Johnson is one of 1,347 anesthesiologist assistants in Georgia
Anesthesiologist assistant is Marshall Johnson's primary specialty in the NPI Registry, under taxonomy code 367H00000X. Marshall Johnson is licensed in Georgia.
Specialties and state licenses
- Anesthesiologist assistant, GeorgiaPrimary
Anesthesiologist assistants near Marshall Johnson
Counts of anesthesiologist 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
Marshall P. Johnson treated 57 Medicare patients in 2024, average age 75
CMS counts 57 Medicare patients who saw Marshall Johnson in 2024. The largest group is 75 to 84, with 27 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marshall Johnson's median patient age at 71, with 65% women.
Marshall Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marshall Johnson's Medicare patients by sex, 2024
- Women2442%
- Men3358%
Chronic conditions among Marshall Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Heart failure51%
- Atrial fibrillation49%
- Ischemic heart disease47%
- Chronic kidney disease40%
- Anxiety32%
Share of Medicare patients with each condition. A patient can have several.
Marshall Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marshall P. Johnson scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Marshall Johnson for performance year 2024, reported through an alternative payment model (APM). Marshall Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Marshall Johnson's MIPS scores, performance year 2024
- 95of 100Final score
- 80.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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
Marshall P. Johnson graduated from Emory University School of Medicine
Marshall Johnson graduated from Emory University School of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Marshall P. Johnson'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) |
| 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 Marshall P. Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marshall P. Johnson's NPI number?
Marshall P. Johnson's NPI number is 1720429962. It was assigned on July 16, 2013, and it is active in the NPI Registry.
What does Marshall P. Johnson specialize in?
Marshall P. Johnson is an anesthesiologist assistant in Atlanta, Georgia. The primary specialty in the NPI Registry is Anesthesiologist Assistant (taxonomy code 367H00000X).
Where does Marshall P. Johnson practice?
Marshall Johnson practices at 80 Jesse Hill, Jr Drive SE, Atlanta, GA 30303. Marshall Johnson's primary practice is Grady Memorial Hospital in Atlanta, Georgia, part of The Fulton-DeKalb Hospital Authority. Dmand AI also links Marshall Johnson to 1 hospital and 2 medical groups.
What is Marshall P. Johnson's office phone number?
The practice phone on file for Marshall Johnson is (404) 616-1000.
What is Marshall P. Johnson's medical license number?
Marshall Johnson holds Georgia license 6923.
Which hospitals is Marshall P. Johnson affiliated with?
Marshall Johnson practices at Grady Memorial Hospital in Atlanta, Georgia. Marshall Johnson is also affiliated with Emory University Hospital. Dmand AI links Marshall Johnson to 1 more hospital.
What medical group is Marshall P. Johnson part of?
Marshall Johnson is linked to Emory Clinic. Dmand AI links Marshall Johnson to 2 more medical groups.
Does Marshall P. Johnson accept Medicare?
Yes. CMS lists Marshall Johnson as accepting Medicare assignment.
What is Marshall P. Johnson's MIPS score?
Marshall Johnson's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Marshall P. Johnson see?
CMS counts 57 Medicare patients who saw Marshall Johnson in 2024, with an average age of 75.
Where did Marshall P. Johnson go to medical school?
Marshall Johnson graduated from Emory University School of Medicine in 2013.
How long has Marshall P. Johnson been practicing?
Marshall Johnson graduated from medical school in 2013, 13 years ago.
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