Teach Learn Med
Clinical ClerkshipClinical CompetenceEducational Measurement
John A. Walker
NPI1407876709
- Medicare services, 2018
- 41
- Part D claims, 2018
- 86
- Publications
- 4
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 125 Paterson St, New Brunswick, NJ 08901-1962
- Practice phone
- Call (732) 235-6512
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find John Walker'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.
John A. Walker is a nephrologist in New Brunswick, New Jersey
John Walker practices in New Brunswick, New Jersey.
John Walker's NPI, 1407876709, was assigned on July 20, 2006. John Walker holds New Jersey license MA39207.
NPI and contact details
- NPI
- 1407876709NPI Registry (opens in a new tab)
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Practice phone
- (732) 235-6512
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
John A. Walker's practice address is in New Brunswick, New Jersey
John Walker's practice address in the NPI Registry is 125 Paterson St, New Brunswick, NJ 08901-1962. The practice phone is (732) 235-6512.
- NPI Registry address125 Paterson St, New Brunswick, NJ 08901-1962Phone(732) 235-6512
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at John A. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Walker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John Walker's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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John A. Walker is one of 399 nephrologists in New Jersey
Nephrology is John Walker's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. John Walker is licensed in New Jersey.
Specialties and state licenses
- Nephrology, New JerseyPrimary
Nephrologists near John Walker
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
399nephrologists in New Jersey
7nephrologists in New Brunswick
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
John A. Walker billed Medicare for 41 services in 2018
CMS data shows 41 Medicare services from John Walker across 1 procedure code in 2018, all of them office visits. Medicare paid $3,563 for them. Every service was in an office.
Medicare services, 201841
Paid by Medicare$3,563
Procedure codes1
John Walker's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 702018: 4141%
John Walker compared with the New Jersey median for nephrologists, 2018
- John Walker
- New Jersey median
- Medicare services
- 41vs 1,38297% below
- Part D claims
- 86vs 94591% below
Medians across 397 nephrologists in New Jersey with Dmand AI profiles that report each measure.
John Walker's most billed Medicare procedure codes, 2018
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 John Walker?
Medicare shows one payer. Book a meeting to get commercial claims data for John Walker and other nephrologists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
John A. Walker wrote 86 Medicare Part D claims in 2018
In 2018, John Walker wrote 86 Medicare Part D claims. Every claim was for a generic drug. They cover 5 drugs, with $10,418 in total drug cost. In 2017, CMS named 128 claims across 8 drugs.
Part D claims, 201886
Drugs named by CMS5
Total drug cost$10,418
John Walker's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 1282018: 8633%
Drugs named by CMS: 5 in 2018, 8 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Find nephrologists like John Walker by procedure volume and prescribing
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John A. Walker has 4 publications on record
Dmand AI links 4 papers to John Walker, published from 2013 to 2016. The most frequent topics are Educational Measurement, Students, Medical and Clinical Clerkship. John Walker has published most often in Teach Learn Med. John Walker's most frequent co-authors are Laura R. Willett, Joyce G. Afran, MD and Wilbur J. Pan, MD.
Papers4
Years published2013 to 2016
Topics John Walker writes about most
- Educational Measurement
- Students, Medical
- Clinical Clerkship
- Clinical Competence
- Internal Medicine
John Walker's most frequent co-authors
Recent publications by John Walker
Prostaglandins Leukot Essent Fatty Acids
Chromatography, LiquidLipoxinsMacrophages
Teach Learn Med
Drug TherapyEducational MeasurementEducation, Medical
Clinical ClerkshipClinical CompetenceEducational Measurement
See who John Walker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who John Walker works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for John A. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 John A. 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 John A. Walker's NPI number?
John A. Walker's NPI number is 1407876709. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What does John A. Walker specialize in?
John A. Walker is a nephrologist in New Brunswick, New Jersey. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does John A. Walker practice?
John Walker practices at 125 Paterson St, New Brunswick, NJ 08901-1962.
What is John A. Walker's office phone number?
The practice phone on file for John Walker is (732) 235-6512.
What is John A. Walker's medical license number?
John Walker holds New Jersey license MA39207.
Does John A. Walker accept Medicare?
Yes. CMS data shows John Walker billed Medicare for 41 services in 2018.
What services does John A. Walker bill to Medicare?
In 2018, John Walker's most billed Medicare services were office visit, established patient (99214).
What drugs does John A. Walker prescribe most?
In 2018 Medicare Part D data, John Walker's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Lisinopril.
How long has John A. Walker been practicing?
John Walker's NPI was assigned in 2006.
Does John A. Walker do research?
Dmand AI links 4 publications to John Walker, published from 2013 to 2016.
Who does John A. Walker publish with?
John Walker's most frequent co-authors are Laura R. Willett (3 shared papers), Joyce G. Afran, MD (1 shared paper) and Wilbur J. Pan, MD (1 shared paper).
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