Dr. Mitzi C. Johnson, MD
- Medicare services, 2024
- 204
- Medicare patients, 2024
- 136
- Part D claims, 2024
- 156
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 300 Longwood Avenue, Boston, MA 02115
- Practice phone
- Call (617) 735-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. Mitzi C. Johnson is a pediatrician in Boston, Massachusetts
Dr. Johnson practices at Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital.
Dr. Johnson's NPI, 1497887293, was assigned on March 9, 2007. Dr. Johnson holds Massachusetts license 59642.
- NPI
- 1497887293NPI Registry (opens in a new tab)
- NPI enumeration date
- March 9, 2007
- NPI status
- Active
- Practice phone
- (617) 735-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mitzi C. Johnson practices at Boston Children's Hospital in Boston, Massachusetts
Dr. Johnson's primary practice is Boston Children's Hospital, at 300 Longwood Avenue, Boston, MA 02115 in Suffolk County. The practice phone is (617) 735-6000.
- Boston Children's Hospital300 Longwood Avenue, Boston, MA 02115 · Suffolk CountyPhone(617) 735-6000
Source: Dmand AI Affiliation Data
Dr. Mitzi C. Johnson is affiliated with 2 sites of care and 3 medical groups
Dr. Johnson's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. The medical group on file is Pratt Pediatric Associates. Dmand AI also links Dr. Johnson to 2 more medical groups and 1 dialysis center, 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. Mitzi C. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boston Children's Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mitzi C. Johnson is one of 2,101 pediatricians in Massachusetts
Pediatrics is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Johnson is licensed in Massachusetts.
Specialties and state licenses
- Pediatrics, MassachusettsPrimary
Pediatricians near Dr. Johnson
Counts of pediatricians 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. Mitzi C. Johnson billed Medicare for 204 services in 2024
CMS data shows 204 Medicare services from Dr. Johnson across 6 procedure codes in 2024, for 136 Medicare patients. Medicare paid $10,445 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1252024: 1304%
- Lab and pathology
- 2023: 372024: 74100%
Dr. Johnson compared with the Massachusetts median for pediatricians, 2024
- Dr. Johnson
- Massachusetts median
- Medicare services
- 204vs 14640% above
- Medicare patients
- 136vs 9051% above
- Part D claims
- 64vs 203.2 times
Medians across 283 pediatricians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Johnson'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. Mitzi C. Johnson treated 136 Medicare patients in 2024, average age 70
CMS counts 136 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 59 patients. 70% of them have high cholesterol, and 66% have high blood pressure. 21% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 9, with 61% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women8764%
- Men4936%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High cholesterol70%
- High blood pressure66%
- Arthritis47%
- Mood disorders30%
- Anxiety26%
- Depression26%
- Chronic kidney disease18%
- Diabetes18%
Share of Medicare patients with each condition. A patient can have several.
Dr. 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 9
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mitzi C. Johnson wrote 156 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 156 Medicare Part D claims for 126 patients. 96% of them were for generic drugs. CMS names the drug for 64 of them, across 4 drugs with 11 or more claims each, at $417 in total drug cost. In 2023, CMS named 99 claims across 6 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic149 claims96%
- Brand-name and other7 claims4%
Dr. Johnson'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. Johnson's Part D claims, 2024
- Antibiotics47%74 of 156 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: 992024: 6435%
Drugs named by CMS: 4 in 2024, 6 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
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Sources for Dr. Mitzi C. 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 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) |
| 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. Mitzi C. 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 Dr. Mitzi C. Johnson's NPI number?
Dr. Mitzi C. Johnson's NPI number is 1497887293. It was assigned on March 9, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mitzi C. Johnson?
Dr. Mitzi C. Johnson is a pediatrician in Boston, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Mitzi C. Johnson practice?
Dr. Johnson practices at 300 Longwood Avenue, Boston, MA 02115. Dr. Johnson's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. Dmand AI also links Dr. Johnson to 2 medical groups and 1 dialysis center.
What is Dr. Mitzi C. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (617) 735-6000.
What is Dr. Mitzi C. Johnson's medical license number?
Dr. Johnson holds Massachusetts license 59642.
Which hospitals is Dr. Mitzi C. Johnson affiliated with?
Dr. Johnson practices at Boston Children's Hospital in Boston, Massachusetts.
What medical group is Dr. Mitzi C. Johnson part of?
Dr. Johnson is linked to Pratt Pediatric Associates. Dmand AI links Dr. Johnson to 2 more medical groups.
Does Dr. Mitzi C. Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 204 services in 2024.
How many Medicare patients does Dr. Mitzi C. Johnson see?
CMS counts 136 Medicare patients who saw Dr. Johnson in 2024, with an average age of 70.
What services does Dr. Mitzi C. Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and lab and pathology test (87804).
What drugs does Dr. Mitzi C. Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Doxycycline Hyclate, Prednisone and Cephalexin.
How long has Dr. Mitzi C. Johnson been practicing?
Dr. Johnson graduated from medical school in 1985, 41 years ago.
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