Dr. Harjit Singh, MD
- Medicare services, 2020
- 400
- Part D claims, 2024
- 123
- Publications
- 63
- Hospital affiliations
- 1
- Industry payments
- $201
- Practice address
- 110 Irving Street NW, Washington, DC 20010
- Practice phone
- Call (202) 877-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Harjit Singh is an internist in Washington, District of Columbia
Dr. Singh practices at MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
Dr. Singh's NPI, 1265518583, was assigned on October 29, 2006. Dr. Singh holds Maryland license D0014160.
- NPI
- 1265518583NPI Registry (opens in a new tab)
- NPI enumeration date
- October 29, 2006
- NPI status
- Active
- Practice phone
- (202) 877-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 88
- Medical school graduation
- 1964
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Harjit Singh practices at MedStar Washington Hospital Center in Washington, District of Columbia
Dr. Singh's primary practice is MedStar Washington Hospital Center, at 110 Irving Street NW, Washington, DC 20010 in The District County. The practice phone is (202) 877-7000.
- MedStar Washington Hospital Center110 Irving Street NW, Washington, DC 20010 · The District CountyPhone(202) 877-7000
Source: Dmand AI Affiliation Data
Dr. Harjit Singh is affiliated with 1 site of care
Dr. Singh's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Harjit Singh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Washington Hospital Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Harjit Singh is one of 660 internists in District of Columbia
Internal medicine is Dr. Singh's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Singh is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Singh
Counts of internists 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. Harjit Singh billed Medicare for 400 services in 2020
CMS data shows 400 Medicare services from Dr. Singh across 5 procedure codes in 2020. Medicare paid $17,358 for them. Every service was in an office.
Dr. Singh's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 3722020: 30817%
- Surgery
- 2019: 802020: 3655%
- Other services
- 2019: 302020: 293%
- Tests and treatments
- 2019: 252020: 278%
Dr. Singh compared with the District of Columbia median for internists, 2020
- Dr. Singh
- District of Columbia median
- Medicare services
- 400vs 35413% above
- Part D claims
- 24vs 11078% below
Medians across 591 internists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Singh's most billed Medicare procedure codes, 2020
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 internists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Harjit Singh's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Singh's median patient age at 70, with 45% women.
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 70
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Harjit Singh wrote 123 Medicare Part D claims in 2024
In 2024, Dr. Singh wrote 123 Medicare Part D claims. 98% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $228 in total drug cost. In 2023, CMS named 76 claims across 6 drugs.
Dr. Singh's Part D claims by kind of drug, 2024
- Generic120 claims98%
- Brand-name and other3 claims2%
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.
Drug classes CMS tracks in Dr. Singh's Part D claims, 2024
- Opioids11%14 of 123 claims
- Antibiotics11%13 of 123 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 762024: 2468%
Drugs named by CMS: 2 in 2024, 6 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
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Dr. Harjit Singh has 63 publications on record
Dmand AI links 63 papers to Dr. Singh, published from 2010 to 2025. 2021 was the busiest year, with 10. The most frequent topics are Australia, Pharmacists and Drainage. Dr. Singh has published most often in J Vasc Interv Radiol. Dr. Singh's most frequent co-authors are Horacio J. Asbun, MD, Ryan William England, MD and Kelvin K. Hong, MBCHB.
Dr. Singh's papers by year, 2014 to 2025
Topics Dr. Singh writes about most
- Australia
- Pharmacists
- Drainage
- Mentoring
- Cholecystitis, Acute
- Cholecystostomy
- Comorbidity
- Coronary Angiography
Dr. Singh's most frequent co-authors
- Horacio J. Asbun, MD4 shared papers
- Ryan William England, MD4 shared papers
- Kelvin K. Hong, MBCHB4 shared papers
Recent publications by Dr. Singh
Drug Saf
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 internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Harjit Singh received $201 in industry payments from 2017 to 2018
CMS Open Payments shows 5 general payments to Dr. Singh from 4 drug and device companies from 2017 to 2018. Food and beverage make up the largest share, 100% of the total. Covidien LP paid the most, $86.
General payments to Dr. Singh by program year, 2017 to 2018
Companies that paid Dr. Singh the most, 2017 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Harjit 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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Harjit 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. Harjit Singh's NPI number?
Dr. Harjit Singh's NPI number is 1265518583. It was assigned on October 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Harjit Singh?
Dr. Harjit Singh is an internist in Washington, District of Columbia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Harjit Singh practice?
Dr. Singh practices at 110 Irving Street NW, Washington, DC 20010. Dr. Singh's primary practice is MedStar Washington Hospital Center in Washington, District of Columbia, part of MedStar Health.
What is Dr. Harjit Singh's office phone number?
The practice phone on file for Dr. Singh is (202) 877-7000.
What is Dr. Harjit Singh's medical license number?
Dr. Singh holds Maryland license D0014160.
Which hospitals is Dr. Harjit Singh affiliated with?
Dr. Singh practices at MedStar Washington Hospital Center in Washington, District of Columbia.
Does Dr. Harjit Singh accept Medicare?
Yes. CMS data shows Dr. Singh billed Medicare for 400 services in 2020.
What services does Dr. Harjit Singh bill to Medicare?
In 2020, Dr. Singh's most billed Medicare services were office visit, established patient (99213), surgery: heart and blood vessels (36415) and office visit, established patient (99212).
What drugs does Dr. Harjit Singh prescribe most?
In 2024 Medicare Part D data, Dr. Singh's most prescribed drugs by claims were Diazepam and Oxycodone-Acetaminophen.
Has Dr. Harjit Singh received payments from drug or device companies?
CMS Open Payments shows $201 in general payments to Dr. Singh from 4 companies from 2017 to 2018. The largest total came from Covidien LP.
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How long has Dr. Harjit Singh been practicing?
Dr. Singh graduated from medical school in 1964, 62 years ago.
Does Dr. Harjit Singh do research?
Dmand AI links 63 publications to Dr. Singh, published from 2010 to 2025.
Who does Dr. Harjit Singh publish with?
Dr. Singh's most frequent co-authors are Horacio J. Asbun, MD (4 shared papers), Ryan William England, MD (4 shared papers) and Kelvin K. Hong, MBCHB (4 shared papers).
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