Dr. Rebecca J. Leong, MD
- Medicare services, 2024
- 1,338
- Medicare patients, 2024
- 1,223
- Industry payments
- $198
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 52 2nd Ave, Waltham, MA 02451
- Practice phone
- Call (781) 768-5590
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Boston Eye Surgery & Laser Center Trust
Waltham, Massachusetts
Find Dr. Leong'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. Rebecca J. Leong is an anesthesiologist in Waltham, Massachusetts
Dr. Leong practices at Boston Eye Surgery & Laser Center Trust in Waltham, Massachusetts.
Dr. Leong's NPI, 1922089952, was assigned on November 8, 2005. Dr. Leong graduated from Harvard Medical School in 1988. Dr. Leong holds Massachusetts license 71309.
- NPI
- 1922089952NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739373549
- NPI enumeration date
- November 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 768-5590
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rebecca J. Leong practices at Boston Eye Surgery & Laser Center Trust in Waltham, Massachusetts
Dr. Leong's primary practice is Boston Eye Surgery & Laser Center Trust, at 52 2nd Ave, Waltham, MA 02451 in Middlesex County. The practice phone is (781) 768-5590.
- Boston Eye Surgery & Laser Center Trust52 2nd Ave, Waltham, MA 02451 · Middlesex CountyPhone(781) 768-5590
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rebecca J. Leong is affiliated with 3 sites of care and 2 medical groups
Dr. Leong's primary practice is Boston Eye Surgery & Laser Center Trust in Waltham, Massachusetts. The medical group on file is JJM Medical Services. Dmand AI also links Dr. Leong to 2 more ambulatory surgery centers and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rebecca J. Leong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leong practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boston Eye Surgery & Laser Center Trust | 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. Rebecca J. Leong is one of 1,552 anesthesiologists in Massachusetts
Anesthesiology is Dr. Leong's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Leong is licensed in Massachusetts.
Specialties and state licenses
- Anesthesiology, MassachusettsPrimary
Anesthesiologists near Dr. Leong
Counts of anesthesiologists 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. Rebecca J. Leong billed Medicare for 1,338 services in 2024
CMS data shows 1,338 Medicare services from Dr. Leong across 5 procedure codes in 2024, for 1,223 Medicare patients. Medicare paid $95,344 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Leong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1,2842024: 1,3384%
Dr. Leong compared with the Massachusetts median for anesthesiologists, 2024
- Dr. Leong
- Massachusetts median
- Medicare services
- 1,338vs 12610.6 times
- Medicare patients
- 1,223vs 2006.1 times
Medians across 1,366 anesthesiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Leong'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.
Need commercial claims for Dr. Leong?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leong and other anesthesiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rebecca J. Leong treated 1,223 Medicare patients in 2024, average age 76
CMS counts 1,223 Medicare patients who saw Dr. Leong in 2024. The largest group is 75 to 84, with 581 patients. 73% of them have high cholesterol, and 66% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Leong's median patient age at 72, with 51% women.
Dr. Leong's Medicare patients by age, 2024
Dr. Leong's Medicare patients by sex, 2024
- Women75962%
- Men46438%
Chronic conditions among Dr. Leong's Medicare patients, 2024
- High cholesterol73%
- High blood pressure66%
- Arthritis42%
- Anxiety22%
- Osteoporosis22%
- Ischemic heart disease21%
- Mood disorders21%
- Chronic kidney disease18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Rebecca J. Leong takes part in Medicare
Dr. Leong 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. Rebecca J. Leong received $198 in industry payments from 2018 to 2024
CMS Open Payments shows 4 general payments to Dr. Leong from 3 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Alkermes, Inc. paid the most, $124.
General payments to Dr. Leong by program year, 2018 to 2024
Companies that paid Dr. Leong the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rebecca J. Leong graduated from Harvard Medical School
Dr. Leong graduated from Harvard Medical School in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rebecca J. Leong'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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. Rebecca J. Leong
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. Rebecca J. Leong's NPI number?
Dr. Rebecca J. Leong's NPI number is 1922089952. It was assigned on November 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Rebecca J. Leong?
Dr. Rebecca J. Leong is an anesthesiologist in Waltham, Massachusetts. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Rebecca J. Leong practice?
Dr. Leong practices at 52 2nd Ave, Waltham, MA 02451. Dr. Leong's primary practice is Boston Eye Surgery & Laser Center Trust in Waltham, Massachusetts. Dmand AI also links Dr. Leong to 2 ambulatory surgery centers and 1 medical group.
What is Dr. Rebecca J. Leong's office phone number?
The practice phone on file for Dr. Leong is (781) 768-5590.
What is Dr. Rebecca J. Leong's medical license number?
Dr. Leong holds Massachusetts license 71309.
What medical group is Dr. Rebecca J. Leong part of?
Dr. Leong is linked to JJM Medical Services. Dmand AI links Dr. Leong to 1 more medical group.
Does Dr. Rebecca J. Leong accept Medicare?
Yes. CMS data shows Dr. Leong billed Medicare for 1,338 services in 2024, and Dr. Leong accepts Medicare assignment.
How many Medicare patients does Dr. Rebecca J. Leong see?
CMS counts 1,223 Medicare patients who saw Dr. Leong in 2024, with an average age of 76.
What services does Dr. Rebecca J. Leong bill to Medicare?
In 2024, Dr. Leong's most billed Medicare services were anesthesia (00142), anesthesia (00140) and anesthesia (00145).
Where did Dr. Rebecca J. Leong go to medical school?
Dr. Leong graduated from Harvard Medical School in 1988.
Has Dr. Rebecca J. Leong received payments from drug or device companies?
CMS Open Payments shows $198 in general payments to Dr. Leong from 3 companies from 2018 to 2024. The largest total came from Alkermes, Inc.
How long has Dr. Rebecca J. Leong been practicing?
Dr. Leong graduated from medical school in 1988, 38 years ago.
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