Dr. Jonathon H. Schwartz, MD
- Medicare services, 2024
- 205
- Medicare patients, 2024
- 132
- Part D claims, 2024
- 55
- Hospital affiliations
- 2
- Industry payments
- $79
- Practice address
- 330 Mount Auburn Street, Cambridge, MA 02138
- Practice phone
- Call (617) 492-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Schwartz'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. Jonathon H. Schwartz is a nephrologist in Cambridge, Massachusetts
Dr. Schwartz practices at Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health.
Dr. Schwartz's NPI, 1689644932, was assigned on January 26, 2006. Dr. Schwartz graduated from Temple University School of Medicine in 1997. Dr. Schwartz holds Massachusetts license 160454.
- NPI
- 1689644932NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749239564
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 492-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathon H. Schwartz practices at Mount Auburn Hospital in Cambridge, Massachusetts
Dr. Schwartz's primary practice is Mount Auburn Hospital, at 330 Mount Auburn Street, Cambridge, MA 02138 in Middlesex County. The practice phone is (617) 492-3500.
- Mount Auburn Hospital330 Mount Auburn Street, Cambridge, MA 02138 · Middlesex CountyPhone(617) 492-3500
Source: Dmand AI Affiliation Data
Dr. Jonathon H. Schwartz is affiliated with 2 sites of care and 2 medical groups
Dr. Schwartz's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. Dr. Schwartz is also affiliated with Spaulding Hospital for Continuing Medical Care Cambridge. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Schwartz to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathon H. Schwartz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schwartz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Auburn Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Beth Israel Lahey Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jonathon H. Schwartz is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Schwartz's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Schwartz is licensed in Massachusetts.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
Nephrologists near Dr. Schwartz
Counts of nephrologists 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. Jonathon H. Schwartz billed Medicare for 205 services in 2024
CMS data shows 205 Medicare services from Dr. Schwartz across 7 procedure codes in 2024, for 132 Medicare patients. Medicare paid $18,472 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Schwartz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1702024: 18710%
- Tests and treatments
- 2023: 202024: 1810%
Dr. Schwartz compared with the Massachusetts median for nephrologists, 2024
- Dr. Schwartz
- Massachusetts median
- Medicare services
- 205vs 70171% below
- Medicare patients
- 132vs 28253% below
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Schwartz'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. Schwartz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schwartz and other nephrologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathon H. Schwartz treated 132 Medicare patients in 2024, average age 75
CMS counts 132 Medicare patients who saw Dr. Schwartz in 2024. The largest group is 65 to 74, with 47 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 3.78, 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. Schwartz's median patient age at 76, with 44% women.
Dr. Schwartz's Medicare patients by age, 2024
Dr. Schwartz's Medicare patients by sex, 2024
- Women6146%
- Men7154%
Chronic conditions among Dr. Schwartz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease69%
- Heart failure66%
- Atrial fibrillation55%
- Ischemic heart disease55%
- Diabetes53%
- Arthritis52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schwartz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women44%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathon H. Schwartz wrote 55 Medicare Part D claims in 2024
In 2024, Dr. Schwartz wrote 55 Medicare Part D claims for 14 patients. 80% of them were for generic drugs.
Dr. Schwartz's Part D claims by kind of drug, 2024
- Generic44 claims80%
- Brand-name11 claims20%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jonathon H. Schwartz takes part in Medicare
Dr. Schwartz 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jonathon H. Schwartz received $79 in industry payments from 2022 to 2025
CMS Open Payments shows 5 general payments to Dr. Schwartz from 3 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 98% of the total. Neurocrine BioSciences, Inc. paid the most, $65.
General payments to Dr. Schwartz by program year, 2022 to 2025
General payments to Dr. Schwartz by kind, 2022 to 2025
- Food and beverage$7798%
- Education$22%
Companies that paid Dr. Schwartz the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathon H. Schwartz graduated from Temple University School of Medicine
Dr. Schwartz graduated from Temple University School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jonathon H. Schwartz'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 (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. Jonathon H. Schwartz
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. Jonathon H. Schwartz's NPI number?
Dr. Jonathon H. Schwartz's NPI number is 1689644932. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathon H. Schwartz?
Dr. Jonathon H. Schwartz is a nephrologist in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Jonathon H. Schwartz practice?
Dr. Schwartz practices at 330 Mount Auburn Street, Cambridge, MA 02138. Dr. Schwartz's primary practice is Mount Auburn Hospital in Cambridge, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Dr. Schwartz to 1 medical group.
What is Dr. Jonathon H. Schwartz's office phone number?
The practice phone on file for Dr. Schwartz is (617) 492-3500.
What is Dr. Jonathon H. Schwartz's medical license number?
Dr. Schwartz holds Massachusetts license 160454.
Which hospitals is Dr. Jonathon H. Schwartz affiliated with?
Dr. Schwartz practices at Mount Auburn Hospital in Cambridge, Massachusetts. Dr. Schwartz is also affiliated with Spaulding Hospital for Continuing Medical Care Cambridge.
What medical group is Dr. Jonathon H. Schwartz part of?
Dr. Schwartz is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Schwartz to 1 more medical group.
Does Dr. Jonathon H. Schwartz accept Medicare?
Yes. CMS data shows Dr. Schwartz billed Medicare for 205 services in 2024, and Dr. Schwartz accepts Medicare assignment.
How many Medicare patients does Dr. Jonathon H. Schwartz see?
CMS counts 132 Medicare patients who saw Dr. Schwartz in 2024, with an average age of 75.
What services does Dr. Jonathon H. Schwartz bill to Medicare?
In 2024, Dr. Schwartz's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and dialysis (90935).
Show 3 more questionsShow fewer questions
Where did Dr. Jonathon H. Schwartz go to medical school?
Dr. Schwartz graduated from Temple University School of Medicine in 1997.
Has Dr. Jonathon H. Schwartz received payments from drug or device companies?
CMS Open Payments shows $79 in general payments to Dr. Schwartz from 3 companies from 2022 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Jonathon H. Schwartz been practicing?
Dr. Schwartz graduated from medical school in 1997, 29 years ago.
Selling to nephrology practices?
See nephrologists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card