Dr. Katherine Haye Walker, MD, MS
- Medicare services, 2024
- 268
- Medicare patients, 2024
- 109
- Part D claims, 2024
- 37
- Hospital affiliations
- 1
- Industry payments
- $1,028
- 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
Find Dr. Walker's professional email, personal email and mobile number
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Dr. Katherine Haye Walker is a pulmonologist in Boston, Massachusetts
Dr. Walker practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Walker's NPI, 1528353463, was assigned on June 17, 2011. Dr. Walker graduated from Harvard Medical School in 2011. Dr. Walker holds Massachusetts license 258701.
- NPI
- 1528353463NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567749369
- NPI enumeration date
- June 17, 2011
- 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
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Haye Walker practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Walker'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. Katherine Haye Walker is affiliated with 3 sites of care and 3 medical groups
Dr. Walker's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Walker to 2 more medical groups, 1 hospice 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. Katherine Haye Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 3 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 |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Haye Walker is one of 485 pulmonologists in Massachusetts
Pulmonary disease is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Walker is licensed in Massachusetts.
Specialties and state licenses
- Pulmonary disease, MassachusettsPrimary
Pulmonologists near Dr. Walker
Counts of pulmonologists 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. Katherine Haye Walker billed Medicare for 268 services in 2024
CMS data shows 268 Medicare services from Dr. Walker across 4 procedure codes in 2024, for 109 Medicare patients. Medicare paid $32,817 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1592024: 21032%
- Tests and treatments
- 2023: 02024: 58
Dr. Walker compared with the Massachusetts median for pulmonologists, 2024
- Dr. Walker
- Massachusetts median
- Medicare services
- 268vs 47544% below
- Medicare patients
- 109vs 25557% below
- Part D claims
- 13vs 32996% below
Medians across 481 pulmonologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Walker'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. Katherine Haye Walker treated 109 Medicare patients in 2024, average age 71
CMS counts 109 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 4.11, 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. Walker's median patient age at 69, with 63% women.
Dr. Walker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Walker's Medicare patients by sex, 2024
- Women5046%
- Men5954%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety54%
- Chronic kidney disease53%
- Heart failure52%
- Arthritis50%
- Atrial fibrillation49%
- Diabetes48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women63%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Haye Walker wrote 37 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 37 Medicare Part D claims. 54% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $48,048 in total drug cost. In 2022, CMS named 47 claims across 4 drugs.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic20 claims54%
- Brand-name17 claims46%
Dr. Walker's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 472023: 1372%
Drugs named by CMS: 1 in 2023, 4 in 2022.
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
How Dr. Katherine Haye Walker takes part in Medicare
Dr. Walker 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. Katherine Haye Walker received $1,028 in industry payments from 2016 to 2017
CMS Open Payments shows 3 general payments to Dr. Walker from 2 drug and device companies from 2016 to 2017. Travel and lodging make up the largest share, 97% of the total. Genentech, Inc. paid the most, $1,000.
General payments to Dr. Walker by program year, 2016 to 2017
General payments to Dr. Walker by kind, 2016 to 2017
- Travel and lodging$1,00097%
- Food and beverage$151%
- Education$141%
Companies that paid Dr. Walker the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Haye Walker graduated from Harvard Medical School
Dr. Walker graduated from Harvard Medical School in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Haye Walker'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) |
| 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. Katherine Haye Walker
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. Katherine Haye Walker's NPI number?
Dr. Katherine Haye Walker's NPI number is 1528353463. It was assigned on June 17, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Haye Walker?
Dr. Katherine Haye Walker is a pulmonologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Katherine Haye Walker practice?
Dr. Walker practices at 75 Francis Street, Boston, MA 02115. Dr. Walker's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Walker to 2 medical groups, 1 hospice and 1 hospital outpatient department.
What is Dr. Katherine Haye Walker's office phone number?
The practice phone on file for Dr. Walker is (617) 732-5500.
What is Dr. Katherine Haye Walker's medical license number?
Dr. Walker holds Massachusetts license 258701.
Which hospitals is Dr. Katherine Haye Walker affiliated with?
Dr. Walker practices at Brigham and Women's Hospital in Boston, Massachusetts.
What medical group is Dr. Katherine Haye Walker part of?
Dr. Walker is linked to Brigham and Women's Hospital. Dmand AI links Dr. Walker to 2 more medical groups.
Does Dr. Katherine Haye Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 268 services in 2024, and Dr. Walker accepts Medicare assignment.
How many Medicare patients does Dr. Katherine Haye Walker see?
CMS counts 109 Medicare patients who saw Dr. Walker in 2024, with an average age of 71.
What services does Dr. Katherine Haye Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were critical care (99291), lung function service (94003) and hospital inpatient care (99233).
Show 4 more questionsShow fewer questions
Where did Dr. Katherine Haye Walker go to medical school?
Dr. Walker graduated from Harvard Medical School in 2011.
What drugs does Dr. Katherine Haye Walker prescribe most?
In 2023 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Nucala.
Has Dr. Katherine Haye Walker received payments from drug or device companies?
CMS Open Payments shows $1,028 in general payments to Dr. Walker from 2 companies from 2016 to 2017. The largest total came from Genentech, Inc.
How long has Dr. Katherine Haye Walker been practicing?
Dr. Walker graduated from medical school in 2011, 15 years ago.
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