Dr. Diane Lockhart, MD
- Medicare services, 2024
- 15
- Medicare patients, 2024
- 34
- Part D claims, 2024
- 14
- Hospital affiliations
- 1
- Industry payments
- $3,726
- Practice address
- 123 Summer Street, Worcester, MA 01608
- Practice phone
- Call (508) 363-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lockhart'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.
Dr. Diane Lockhart is a general surgeon in Worcester, Massachusetts
Dr. Lockhart practices at Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare.
Dr. Lockhart's NPI, 1407917412, was assigned on December 13, 2006. Dr. Lockhart graduated from University of Massachusetts Medical School in 1991. Dr. Lockhart holds Massachusetts license 151434.
- NPI
- 1407917412NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739220633
- NPI enumeration date
- December 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 363-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Diane Lockhart practices at Saint Vincent Hospital in Worcester, Massachusetts
Dr. Lockhart's primary practice is Saint Vincent Hospital, at 123 Summer Street, Worcester, MA 01608 in Worcester County. The practice phone is (508) 363-5000.
- Saint Vincent Hospital123 Summer Street, Worcester, MA 01608 · Worcester CountyPhone(508) 363-5000
Source: Dmand AI Affiliation Data
Dr. Diane Lockhart is affiliated with 3 sites of care and 2 medical groups
Dr. Lockhart's primary practice is Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare. The medical group on file is Reliant Medical Group. Dmand AI also links Dr. Lockhart to 1 more group practice or clinic, 1 hospital outpatient department 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. Diane Lockhart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lockhart practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Vincent Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diane Lockhart is one of 732 general surgeons in Massachusetts
Surgery is Dr. Lockhart's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Lockhart is licensed in Massachusetts.
Specialties and state licenses
- Surgery, MassachusettsPrimary
General surgeons near Dr. Lockhart
Counts of general surgeons 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. Diane Lockhart billed Medicare for 15 services in 2024
CMS data shows 15 Medicare services from Dr. Lockhart across 1 procedure code in 2024, all of them office visits, for 34 Medicare patients. Medicare paid $807 for them. Every service was in an office.
Dr. Lockhart's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 122024: 1525%
Dr. Lockhart compared with the Massachusetts median for general surgeons, 2024
- Dr. Lockhart
- Massachusetts median
- Medicare services
- 15vs 20093% below
- Medicare patients
- 34vs 15278% below
- Part D claims
- 15vs 2232% below
Medians across 688 general surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Lockhart'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. Diane Lockhart treated 34 Medicare patients in 2024, average age 72
CMS counts 34 Medicare patients who saw Dr. Lockhart in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have cancer, and 75% have high cholesterol. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lockhart's median patient age at 61, with 100% women.
Dr. Lockhart's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Lockhart's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure74%
- Arthritis38%
- Osteoporosis32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lockhart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Diane Lockhart wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Lockhart wrote 14 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $25 in total drug cost. In 2020, CMS named 24 claims across 2 drugs.
Dr. Lockhart's most prescribed drugs by claims, 2021
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. Lockhart's Part D claims, 2024
- Antibiotics86%12 of 14 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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 242021: 1538%
Drugs named by CMS: 1 in 2021, 2 in 2020.
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. Diane Lockhart takes part in Medicare
Dr. Lockhart accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Diane Lockhart received $3,726 in industry payments from 2016 to 2025
CMS Open Payments shows 162 general payments to Dr. Lockhart from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Myriad Genetic Laboratories, Inc. paid the most, $1,045.
General payments to Dr. Lockhart by program year, 2016 to 2025
General payments to Dr. Lockhart by kind, 2016 to 2025
- Food and beverage$3,60397%
- Travel and lodging$1233%
Companies that paid Dr. Lockhart the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diane Lockhart graduated from University of Massachusetts Medical School
Dr. Lockhart graduated from University of Massachusetts Medical School in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Diane Lockhart'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)Doctors and Clinicians Utilization Data (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. Diane Lockhart
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. Diane Lockhart's NPI number?
Dr. Diane Lockhart's NPI number is 1407917412. It was assigned on December 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diane Lockhart?
Dr. Diane Lockhart is a general surgeon in Worcester, Massachusetts. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Diane Lockhart practice?
Dr. Lockhart practices at 123 Summer Street, Worcester, MA 01608. Dr. Lockhart's primary practice is Saint Vincent Hospital in Worcester, Massachusetts, part of Tenet Healthcare. Dmand AI also links Dr. Lockhart to 1 group practice or clinic, 1 hospital outpatient department and 1 medical group.
What is Dr. Diane Lockhart's office phone number?
The practice phone on file for Dr. Lockhart is (508) 363-5000.
What is Dr. Diane Lockhart's medical license number?
Dr. Lockhart holds Massachusetts license 151434.
Which hospitals is Dr. Diane Lockhart affiliated with?
Dr. Lockhart practices at Saint Vincent Hospital in Worcester, Massachusetts.
What medical group is Dr. Diane Lockhart part of?
Dr. Lockhart is linked to Reliant Medical Group. Dmand AI links Dr. Lockhart to 1 more medical group.
Does Dr. Diane Lockhart accept Medicare?
Yes. CMS data shows Dr. Lockhart billed Medicare for 15 services in 2024, and Dr. Lockhart accepts Medicare assignment.
How many Medicare patients does Dr. Diane Lockhart see?
CMS counts 34 Medicare patients who saw Dr. Lockhart in 2024, with an average age of 72.
What services does Dr. Diane Lockhart bill to Medicare?
In 2024, Dr. Lockhart's most billed Medicare services were office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Dr. Diane Lockhart go to medical school?
Dr. Lockhart graduated from University of Massachusetts Medical School in 1991.
What drugs does Dr. Diane Lockhart prescribe most?
In 2021 Medicare Part D data, Dr. Lockhart's most prescribed drugs by claims were Acetaminophen-Codeine.
Has Dr. Diane Lockhart received payments from drug or device companies?
CMS Open Payments shows $3,726 in general payments to Dr. Lockhart from 16 companies from 2016 to 2025. The largest total came from Myriad Genetic Laboratories, Inc.
How long has Dr. Diane Lockhart been practicing?
Dr. Lockhart graduated from medical school in 1991, 35 years ago.
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