Dr. John Danziger, MD
- Medicare services, 2024
- 2,062
- Medicare patients, 2024
- 419
- Part D claims, 2024
- 822
- Hospital affiliations
- 4
- Industry payments
- $18
- Practice address
- 178 Savin St, Malden, MA 02148
- Practice phone
- Call (781) 306-9740
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Wellington Circle Dialysis Center
Malden, Massachusetts
Find Dr. Danziger'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. John Danziger is a nephrologist in Malden, Massachusetts
Dr. Danziger practices at Wellington Circle Dialysis Center in Malden, Massachusetts.
Dr. Danziger's NPI, 1730161142, was assigned on November 20, 2005. Dr. Danziger graduated from University of Texas Southwestern Medical School at Dallas in 1999. Dr. Danziger holds Massachusetts license 213443.
- NPI
- 1730161142NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789650284
- NPI enumeration date
- November 20, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (781) 306-9740
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Danziger practices at Wellington Circle Dialysis Center in Malden, Massachusetts
Dr. Danziger's primary practice is Wellington Circle Dialysis Center, at 178 Savin St, Malden, MA 02148 in Middlesex County. The practice phone is (781) 306-9740.
- Wellington Circle Dialysis Center178 Savin St, Malden, MA 02148 · Middlesex CountyPhone(781) 306-9740
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Danziger is affiliated with 15 sites of care and 6 medical groups
Dr. Danziger's primary practice is Wellington Circle Dialysis Center in Malden, Massachusetts. Dr. Danziger is also affiliated with Beth Israel Deaconess Medical Center. The medical group on file is Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI also links Dr. Danziger to 3 more hospitals, 6 group practices and clinics, 5 medical groups and 4 dialysis centers, 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. John Danziger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Danziger practices, 14 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wellington Circle Dialysis Center | Available with a free account |
| +14 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Danziger is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Danziger's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Danziger is licensed in Massachusetts.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
Nephrologists near Dr. Danziger
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. John Danziger billed Medicare for 2,062 services in 2024
CMS data shows 2,062 Medicare services from Dr. Danziger across 30 procedure codes in 2024, for 419 Medicare patients. Medicare paid $142,978 for them.
Dr. Danziger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 3512024: 803129%
- Office and hospital visits
- 2023: 4722024: 60929%
- Lab and pathology
- 2023: 3082024: 48658%
- Other services
- 2023: 02024: 105
- Surgery
- 2023: 482024: 5923%
Where Dr. Danziger's Medicare services took place, 2024
- In an office1,26962%
- In a facility79338%
Dr. Danziger compared with the Massachusetts median for nephrologists, 2024
- Dr. Danziger
- Massachusetts median
- Medicare services
- 2,062vs 7012.9 times
- Medicare patients
- 419vs 28249% above
- Part D claims
- 667vs 47142% above
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Danziger'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. Danziger and other nephrologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Danziger treated 419 Medicare patients in 2024, average age 72
CMS counts 419 Medicare patients who saw Dr. Danziger in 2024. The largest group is 75 to 84, with 166 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 36% are also on Medicaid. Their average risk score is 4.81, 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. Danziger's median patient age at 72, with 40% women.
Dr. Danziger's Medicare patients by age, 2024
Dr. Danziger's Medicare patients by sex, 2024
- Women18143%
- Men23857%
Chronic conditions among Dr. Danziger's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Heart failure48%
- Ischemic heart disease46%
- Mood disorders40%
- Arthritis39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Danziger'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
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Danziger wrote 822 Medicare Part D claims in 2024
In 2024, Dr. Danziger wrote 822 Medicare Part D claims for 171 patients. 78% of them were for generic drugs. CMS names the drug for 667 of them, across 17 drugs with 11 or more claims each, at $139,778 in total drug cost. In 2023, CMS named 678 claims across 18 drugs.
Dr. Danziger's Part D claims by kind of drug, 2024
- Generic642 claims78%
- Brand-name180 claims22%
Dr. Danziger's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6782024: 6672%
Drugs named by CMS: 17 in 2024, 18 in 2023.
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
Dr. John Danziger offers telehealth to Medicare patients
Dr. Danziger accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Danziger as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Danziger received $18 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Danziger from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. NxStage Medical, Inc. paid the most, $18.
Companies that paid Dr. Danziger the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Danziger graduated from University of Texas Southwestern Medical School at Dallas
Dr. Danziger graduated from University of Texas Southwestern Medical School at Dallas in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Danziger'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) |
| 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. John Danziger
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 Danziger's NPI number?
Dr. John Danziger's NPI number is 1730161142. It was assigned on November 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Danziger?
Dr. John Danziger is a nephrologist in Malden, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. John Danziger practice?
Dr. Danziger practices at 178 Savin St, Malden, MA 02148. Dr. Danziger's primary practice is Wellington Circle Dialysis Center in Malden, Massachusetts. Dmand AI also links Dr. Danziger to 3 hospitals, 6 group practices and clinics, 5 medical groups and 4 dialysis centers.
What is Dr. John Danziger's office phone number?
The practice phone on file for Dr. Danziger is (781) 306-9740.
What is Dr. John Danziger's medical license number?
Dr. Danziger holds Massachusetts license 213443.
Which hospitals is Dr. John Danziger affiliated with?
Dr. Danziger is affiliated with Beth Israel Deaconess Medical Center. Dmand AI links Dr. Danziger to 3 more hospitals.
What medical group is Dr. John Danziger part of?
Dr. Danziger is linked to Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP). Dmand AI links Dr. Danziger to 5 more medical groups.
Does Dr. John Danziger accept Medicare?
Yes. CMS data shows Dr. Danziger billed Medicare for 2,062 services in 2024, and Dr. Danziger accepts Medicare assignment.
Does Dr. John Danziger offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Danziger as offering telehealth services.
How many Medicare patients does Dr. John Danziger see?
CMS counts 419 Medicare patients who saw Dr. Danziger in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. John Danziger bill to Medicare?
In 2024, Dr. Danziger's most billed Medicare services were dialysis (90970), office visit, established patient (99214) and dialysis (90935).
Where did Dr. John Danziger go to medical school?
Dr. Danziger graduated from University of Texas Southwestern Medical School at Dallas in 1999.
What drugs does Dr. John Danziger prescribe most?
In 2024 Medicare Part D data, Dr. Danziger's most prescribed drugs by claims were Calcitriol, Farxiga and Lisinopril.
Has Dr. John Danziger received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Danziger from 1 company from 2017 to 2017. The largest total came from NxStage Medical, Inc.
How long has Dr. John Danziger been practicing?
Dr. Danziger graduated from medical school in 1999, 27 years ago.
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