Dr. Alexandra Michelle Johnston, DO
- Medicare services, 2024
- 197
- Medicare patients, 2024
- 78
- Part D claims, 2024
- 1,706
- MIPS score, 2024
- 94
- Hospital affiliations
- 4
- Practice address
- 320 East North Avenue, Pittsburgh, PA 15212
- Practice phone
- Call (412) 359-3131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnston's professional email, personal email and mobile number
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Dr. Alexandra Michelle Johnston is an internist in Pittsburgh, Pennsylvania
Dr. Johnston practices at Allegheny General Hospital in Pittsburgh, Pennsylvania, part of Highmark Health.
Dr. Johnston's NPI, 1033504253, was assigned on April 3, 2015. Dr. Johnston graduated from Lake Erie College of Osteopathic Medicine, Erie in 2015. Dr. Johnston holds Pennsylvania license OS019357.
- NPI
- 1033504253NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193013274
- NPI enumeration date
- April 3, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (412) 359-3131
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexandra Michelle Johnston practices at Allegheny General Hospital in Pittsburgh, Pennsylvania
Dr. Johnston's primary practice is Allegheny General Hospital, at 320 East North Avenue, Pittsburgh, PA 15212 in Allegheny County. The practice phone is (412) 359-3131.
- Allegheny General Hospital320 East North Avenue, Pittsburgh, PA 15212 · Allegheny CountyPhone(412) 359-3131
Source: Dmand AI Affiliation Data
Dr. Alexandra Michelle Johnston is affiliated with 8 sites of care and 2 medical groups
Dr. Johnston's primary practice is Allegheny General Hospital in Pittsburgh, Pennsylvania, part of Highmark Health. Dr. Johnston is also affiliated with West Penn Hospital. The medical group on file is AHN Primary Care - Family Med Associates at H+W Pavilion Bethel Park. Dmand AI also links Dr. Johnston to 2 more hospitals, 2 group practices and clinics, 1 breast imaging center, 1 home health agency 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. Alexandra Michelle Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Allegheny General Hospital | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexandra Michelle Johnston is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnston is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Johnston
Counts of internists 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. Alexandra Michelle Johnston billed Medicare for 197 services in 2024
CMS data shows 197 Medicare services from Dr. Johnston across 8 procedure codes in 2024, for 78 Medicare patients. Medicare paid $13,797 for them. Every service was in an office.
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 272024: 78189%
- Office and hospital visits
- 2023: 1222024: 7836%
- Tests and treatments
- 2023: 02024: 41
Dr. Johnston compared with the Pennsylvania median for internists, 2024
- Dr. Johnston
- Pennsylvania median
- Medicare services
- 197vs 41753% below
- Medicare patients
- 78vs 18558% below
- Part D claims
- 1,309vs 2245.8 times
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Johnston'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. Johnston and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexandra Michelle Johnston treated 78 Medicare patients in 2024, average age 71
CMS counts 78 Medicare patients who saw Dr. Johnston in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 68, with 68% women.
Dr. Johnston's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnston's Medicare patients by sex, 2024
- Women4963%
- Men2937%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Chronic kidney disease32%
- Mood disorders32%
- Diabetes29%
- Depression27%
- Ischemic heart disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexandra Michelle Johnston wrote 1,706 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 1,706 Medicare Part D claims for 159 patients. 80% of them were for generic drugs. CMS names the drug for 1,309 of them, across 39 drugs with 11 or more claims each, at $189,703 in total drug cost. In 2023, CMS named 1,125 claims across 37 drugs.
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic1,369 claims80%
- Brand-name318 claims19%
- Other19 claims1%
Dr. Johnston'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1252024: 1,30916%
Drugs named by CMS: 39 in 2024, 37 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. Alexandra Michelle Johnston scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Johnston for performance year 2024, reported through an alternative payment model (APM). Dr. Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Johnston's MIPS scores, performance year 2024
- 94of 100Final score
- 85of 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
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Dr. Alexandra Michelle Johnston received $858 in industry payments from 2016 to 2023
CMS Open Payments shows 27 general payments to Dr. Johnston from 14 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $151.
General payments to Dr. Johnston by program year, 2016 to 2023
Companies that paid Dr. Johnston the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexandra Michelle Johnston graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Johnston graduated from Lake Erie College of Osteopathic Medicine, Erie in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexandra Michelle Johnston'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)Clinician Public Reporting: Overall MIPS Performance (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. Alexandra Michelle Johnston
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. Alexandra Michelle Johnston's NPI number?
Dr. Alexandra Michelle Johnston's NPI number is 1033504253. It was assigned on April 3, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexandra Michelle Johnston?
Dr. Alexandra Michelle Johnston is an internist in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Alexandra Michelle Johnston practice?
Dr. Johnston practices at 320 East North Avenue, Pittsburgh, PA 15212. Dr. Johnston's primary practice is Allegheny General Hospital in Pittsburgh, Pennsylvania, part of Highmark Health. Dmand AI also links Dr. Johnston to 2 hospitals, 2 group practices and clinics, 1 breast imaging center, 1 home health agency and 1 medical group.
What is Dr. Alexandra Michelle Johnston's office phone number?
The practice phone on file for Dr. Johnston is (412) 359-3131.
What is Dr. Alexandra Michelle Johnston's medical license number?
Dr. Johnston holds Pennsylvania license OS019357.
Which hospitals is Dr. Alexandra Michelle Johnston affiliated with?
Dr. Johnston practices at Allegheny General Hospital in Pittsburgh, Pennsylvania. Dr. Johnston is also affiliated with West Penn Hospital. Dmand AI links Dr. Johnston to 2 more hospitals.
What medical group is Dr. Alexandra Michelle Johnston part of?
Dr. Johnston is linked to AHN Primary Care - Family Med Associates at H+W Pavilion Bethel Park. Dmand AI links Dr. Johnston to 1 more medical group.
Does Dr. Alexandra Michelle Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 197 services in 2024, and Dr. Johnston accepts Medicare assignment.
What is Dr. Alexandra Michelle Johnston's MIPS score?
Dr. Johnston's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Alexandra Michelle Johnston see?
CMS counts 78 Medicare patients who saw Dr. Johnston in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Alexandra Michelle Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
Where did Dr. Alexandra Michelle Johnston go to medical school?
Dr. Johnston graduated from Lake Erie College of Osteopathic Medicine, Erie in 2015.
What drugs does Dr. Alexandra Michelle Johnston prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Jardiance.
Has Dr. Alexandra Michelle Johnston received payments from drug or device companies?
CMS Open Payments shows $858 in general payments to Dr. Johnston from 14 companies from 2016 to 2023. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Alexandra Michelle Johnston been practicing?
Dr. Johnston graduated from medical school in 2015, 11 years ago.
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