Dr. John William Hanna, MD, PhD
- Medicare services, 2024
- 785
- Medicare patients, 2024
- 439
- Hospital affiliations
- 4
- Industry payments
- $84
- Medical group
- 1
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. John William Hanna is a pathologist in Boston, Massachusetts
Dr. Hanna practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Hanna's NPI, 1073755625, was assigned on March 28, 2009. Dr. Hanna graduated from Harvard Medical School in 2009. Dr. Hanna holds Massachusetts license 250231.
- NPI
- 1073755625NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244474930
- NPI enumeration date
- March 28, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John William Hanna practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Hanna's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. John William Hanna is affiliated with 5 sites of care and 1 medical group
Dr. Hanna's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Hanna is also affiliated with Massachusetts General Hospital. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Hanna to 2 more hospitals and 1 hospital outpatient department, 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. John William Hanna's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hanna practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John William Hanna is one of 174 pathologists in Massachusetts
Anatomic pathology is Dr. Hanna's primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Hanna is board certified in dermatopathology by the American Board of Dermatology. Dr. Hanna is licensed in Massachusetts.
Specialties and state licenses
- Anatomic pathology, MassachusettsPrimary
Pathologists near Dr. Hanna
Counts of pathologists 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. John William Hanna billed Medicare for 785 services in 2024
CMS data shows 785 Medicare services from Dr. Hanna across 6 procedure codes in 2024, for 439 Medicare patients. Medicare paid $20,904 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hanna's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 6332024: 78524%
Dr. Hanna compared with the Massachusetts median for pathologists, 2024
- Dr. Hanna
- Massachusetts median
- Medicare services
- 785vs 1,01923% below
- Medicare patients
- 439vs 453Close to median
Medians across 169 pathologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Hanna'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. Hanna and other pathologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John William Hanna treated 439 Medicare patients in 2024, average age 77
CMS counts 439 Medicare patients who saw Dr. Hanna in 2024. The largest group is 75 to 84, with 192 patients. 73% of them have high cholesterol, and 72% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hanna's median patient age at 71, with 49% women.
Dr. Hanna's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hanna's Medicare patients by sex, 2024
- Women22752%
- Men21248%
Chronic conditions among Dr. Hanna's Medicare patients, 2024
- High cholesterol73%
- High blood pressure72%
- Arthritis41%
- Ischemic heart disease26%
- Cancer24%
- Atrial fibrillation23%
- Chronic kidney disease22%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hanna'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
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John William Hanna takes part in Medicare
Dr. Hanna accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John William Hanna received $84 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Hanna from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $84.
Companies that paid Dr. Hanna the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John William Hanna graduated from Harvard Medical School
Dr. Hanna graduated from Harvard Medical School in 2009.
- Medical school
- Board certified in dermatopathology
Source: Dmand AI Professional Profile Data
Sources for Dr. John William Hanna'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. John William Hanna
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. John William Hanna's NPI number?
Dr. John William Hanna's NPI number is 1073755625. It was assigned on March 28, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. John William Hanna?
Dr. John William Hanna is a pathologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).
Where does Dr. John William Hanna practice?
Dr. Hanna practices at 75 Francis Street, Boston, MA 02115. Dr. Hanna's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Hanna to 2 hospitals and 1 hospital outpatient department.
What is Dr. John William Hanna's office phone number?
The practice phone on file for Dr. Hanna is (617) 732-5500.
What is Dr. John William Hanna's medical license number?
Dr. Hanna holds Massachusetts license 250231.
Which hospitals is Dr. John William Hanna affiliated with?
Dr. Hanna practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Hanna is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Hanna to 2 more hospitals.
What medical group is Dr. John William Hanna part of?
Dr. Hanna is linked to Brigham and Women's Hospital.
Does Dr. John William Hanna accept Medicare?
Yes. CMS data shows Dr. Hanna billed Medicare for 785 services in 2024, and Dr. Hanna accepts Medicare assignment.
How many Medicare patients does Dr. John William Hanna see?
CMS counts 439 Medicare patients who saw Dr. Hanna in 2024, with an average age of 77.
Is Dr. John William Hanna board certified?
Yes. Dr. Hanna is board certified in dermatopathology by the American Board of Dermatology.
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What services does Dr. John William Hanna bill to Medicare?
In 2024, Dr. Hanna's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Where did Dr. John William Hanna go to medical school?
Dr. Hanna graduated from Harvard Medical School in 2009.
Has Dr. John William Hanna received payments from drug or device companies?
CMS Open Payments shows $84 in general payments to Dr. Hanna from 1 company from 2025 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. John William Hanna been practicing?
Dr. Hanna graduated from medical school in 2009, 17 years ago.
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