Dr. Ajay K. Singh, MD
- Medicare services, 2024
- 77
- Medicare patients, 2024
- 42
- Part D claims, 2024
- 81
- Publications
- 74
- Clinical trials
- 1
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Singh'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. Ajay K. Singh is a nephrologist in Boston, Massachusetts
Dr. Singh practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Singh's NPI, 1376551382, was assigned on August 4, 2006. Dr. Singh holds Massachusetts license 71991.
- NPI
- 1376551382NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204875131
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ajay K. Singh practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Singh's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Ajay K. Singh is affiliated with 2 sites of care and 1 medical group
Dr. Singh's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Singh to 1 more hospital outpatient department, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ajay K. Singh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singh practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +1 more affiliated site | 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 Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ajay K. Singh is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Singh's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Singh is licensed in Massachusetts.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
Nephrologists near Dr. Singh
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. Ajay K. Singh billed Medicare for 77 services in 2024
CMS data shows 77 Medicare services from Dr. Singh across 2 procedure codes in 2024, for 42 Medicare patients. Medicare paid $4,354 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Singh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 492024: 6022%
- Office and hospital visits
- 2023: 362024: 1753%
Dr. Singh compared with the Massachusetts median for nephrologists, 2024
- Dr. Singh
- Massachusetts median
- Medicare services
- 77vs 70189% below
- Medicare patients
- 42vs 28285% below
- Part D claims
- 29vs 47194% below
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Singh'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. Singh?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Singh and other nephrologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ajay K. Singh treated 42 Medicare patients in 2024, average age 72
CMS counts 42 Medicare patients who saw Dr. Singh in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have chronic kidney disease, and 75% have heart failure. 36% are also on Medicaid. Their average risk score is 8.40, 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. Singh's median patient age at 78, with 42% women.
Dr. Singh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Singh's Medicare patients by sex, 2024
- Women2355%
- Men1945%
Chronic conditions among Dr. Singh's Medicare patients, 2024
- Chronic kidney disease75%
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Diabetes71%
- Ischemic heart disease64%
- Arthritis48%
- Atrial fibrillation48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Singh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ajay K. Singh wrote 81 Medicare Part D claims in 2024
In 2024, Dr. Singh wrote 81 Medicare Part D claims for 14 patients. 62% of them were for generic drugs. CMS names the drug for 29 of them, across 2 drugs with 11 or more claims each, at $14,128 in total drug cost. In 2023, CMS named 57 claims across 3 drugs.
Dr. Singh's Part D claims by kind of drug, 2024
- Generic50 claims62%
- Brand-name31 claims38%
Dr. Singh'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: 572024: 2949%
Drugs named by CMS: 2 in 2024, 3 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. Ajay K. Singh offers telehealth to Medicare patients
Dr. Singh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Singh as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ajay K. Singh has 74 publications on record
Dmand AI links 74 papers to Dr. Singh, published from 2013 to 2018. 2015 was the busiest year, with 14. The most frequent topics are Tomography, X-Ray Computed, Renal Dialysis and Renal Insufficiency, Chronic. Dr. Singh has published most often in Emerg Radiol. Dr. Singh's most frequent co-authors are Ajay Kumar Singh, MD, Marc A. Pfeffer, MD and Aaron David Sodickson, MD.
Dr. Singh's papers by year, 2013 to 2018
Topics Dr. Singh writes about most
- Tomography, X-Ray Computed
- Renal Dialysis
- Renal Insufficiency, Chronic
- Boston
- Magnetic Resonance Imaging
- Anemia
- Blast Injuries
- Saudi Arabia
Dr. Singh's most frequent co-authors
- Ajay Kumar Singh, MD7 shared papers
- Marc A. Pfeffer, MD4 shared papers
- Aaron David Sodickson, MD4 shared papers
Recent publications by Dr. Singh
Br J Radiol
J Am Soc Nephrol
See who Dr. Singh researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Singh works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ajay K. Singh has worked on 1 clinical trial
Dmand AI links Dr. Singh to 1 clinical trial. Open Payments lists research payments to Dr. Singh that name 1 trial.
Investigators on the most trials with Dr. Singh
- Kirk Nicholas Campbell, MD1 shared trial
- Jamie P. Dwyer, MD1 shared trial
- Fernando C. Fervenza, MD1 shared trial
Recent clinical trials with Dr. Singh
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Ajay K. Singh received $1,239,941 in industry payments from 2016 to 2024
CMS Open Payments shows 370 general payments to Dr. Singh from 6 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 92% of the total. GlaxoSmithKline, LLC. paid the most, $1,095,217. It also lists 74 research payments totaling $39,315 from 2016 to 2019, naming 1 clinical trial.
General payments to Dr. Singh by program year, 2016 to 2024
General payments to Dr. Singh by kind, 2016 to 2024
- Consulting fees$1,141,12392%
- Travel and lodging$85,8947%
- Food and beverage$12,9241%
Companies that paid Dr. Singh the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ajay K. Singh'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Ajay K. Singh
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. Ajay K. Singh's NPI number?
Dr. Ajay K. Singh's NPI number is 1376551382. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ajay K. Singh?
Dr. Ajay K. Singh is a nephrologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Ajay K. Singh practice?
Dr. Singh practices at 75 Francis Street, Boston, MA 02115. Dr. Singh's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Singh to 1 hospital outpatient department.
What is Dr. Ajay K. Singh's office phone number?
The practice phone on file for Dr. Singh is (617) 732-5500.
What is Dr. Ajay K. Singh's medical license number?
Dr. Singh holds Massachusetts license 71991.
Which hospitals is Dr. Ajay K. Singh affiliated with?
Dr. Singh practices at Brigham and Women's Hospital in Boston, Massachusetts.
What medical group is Dr. Ajay K. Singh part of?
Dr. Singh is linked to Brigham and Women's Hospital.
Does Dr. Ajay K. Singh accept Medicare?
Yes. CMS data shows Dr. Singh billed Medicare for 77 services in 2024, and Dr. Singh accepts Medicare assignment.
Does Dr. Ajay K. Singh offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Singh as offering telehealth services.
How many Medicare patients does Dr. Ajay K. Singh see?
CMS counts 42 Medicare patients who saw Dr. Singh in 2024, with an average age of 72.
Show 6 more questionsShow fewer questions
What services does Dr. Ajay K. Singh bill to Medicare?
In 2024, Dr. Singh's most billed Medicare services were dialysis (90935) and office visit, established patient (99213).
What drugs does Dr. Ajay K. Singh prescribe most?
In 2024 Medicare Part D data, Dr. Singh's most prescribed drugs by claims were Farxiga and Furosemide.
Has Dr. Ajay K. Singh received payments from drug or device companies?
CMS Open Payments shows $1,239,941 in general payments to Dr. Singh from 6 companies from 2016 to 2024. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Ajay K. Singh been practicing?
Dr. Singh graduated from medical school in 1984, 42 years ago.
Does Dr. Ajay K. Singh do research?
Dmand AI links 74 publications to Dr. Singh, published from 2013 to 2018. Dr. Singh has worked on 1 clinical trial.
Who does Dr. Ajay K. Singh publish with?
Dr. Singh's most frequent co-authors are Ajay Kumar Singh, MD (7 shared papers), Marc A. Pfeffer, MD (4 shared papers) and Aaron David Sodickson, MD (4 shared papers).
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