Dr. Geoffrey Stewart Long, MD
- Medicare services, 2024
- 19
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 6,025
- Affiliated sites
- 3
- Medical group
- 1
- Practice address
- 1890 Metro Center Dr, Reston, VA 20190
- Practice phone
- Call (703) 709-1560
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Reston Medical Center
Reston, Virginia
Find Dr. Long's professional email, personal email and mobile number
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Dr. Geoffrey Stewart Long is an internist in Reston, Virginia
Dr. Long practices at Reston Medical Center in Reston, Virginia.
Dr. Long's NPI, 1962579037, was assigned on November 30, 2006. Dr. Long graduated from Saint Louis University School of Medicine in 1996. Dr. Long holds Virginia license 0101056289.
- NPI
- 1962579037NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820083744
- NPI enumeration date
- November 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 709-1560
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Geoffrey Stewart Long practices at Reston Medical Center in Reston, Virginia
Dr. Long's primary practice is Reston Medical Center, at 1890 Metro Center Dr, Reston, VA 20190 in Fairfax County. The practice phone is (703) 709-1560.
- Reston Medical Center1890 Metro Center Dr, Reston, VA 20190 · Fairfax CountyPhone(703) 709-1560
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Geoffrey Stewart Long is affiliated with 4 sites of care and 1 medical group
Dr. Long's primary practice is Reston Medical Center in Reston, Virginia. The medical group on file is Mid-Atlantic Permanente Medical Group. Dmand AI also links Dr. Long to 2 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Geoffrey Stewart Long's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Long practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reston Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Geoffrey Stewart Long is one of 3,339 internists in Virginia
Internal medicine is Dr. Long's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Long is licensed in Virginia.
Specialties and state licenses
- Internal medicine, VirginiaPrimary
Internists near Dr. Long
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. Geoffrey Stewart Long billed Medicare for 19 services in 2024
CMS data shows 19 Medicare services from Dr. Long across 1 procedure code in 2024, all of them office visits, for 17 Medicare patients. Medicare paid $751 for them. Every service was in an office.
Dr. Long's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 182024: 196%
Dr. Long compared with the Virginia median for internists, 2024
- Dr. Long
- Virginia median
- Medicare services
- 19vs 60797% below
- Medicare patients
- 17vs 24693% below
- Part D claims
- 5,449vs 22424.3 times
Medians across 3,182 internists in Virginia with Dmand AI profiles that report each measure.
Dr. Long'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Geoffrey Stewart Long treated 17 Medicare patients in 2024, average age 74
CMS counts 17 Medicare patients who saw Dr. Long in 2024. The largest group is under 65, with 0 patients. Their average risk score is 0.63, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Long's median patient age at 60, with 36% women.
Dr. Long's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Long's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women36%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Geoffrey Stewart Long wrote 6,025 Medicare Part D claims in 2024
In 2024, Dr. Long wrote 6,025 Medicare Part D claims for 541 patients. 90% of them were for generic drugs. CMS names the drug for 5,449 of them, across 95 drugs with 11 or more claims each, at $174,015 in total drug cost. In 2023, CMS named 4,517 claims across 81 drugs.
Dr. Long's Part D claims by kind of drug, 2024
- Generic5,450 claims90%
- Brand-name527 claims9%
- Other48 claims1%
Dr. Long'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. Long's Part D claims, 2024
- Opioids3%153 of 6,025 claims
- Antibiotics2%113 of 6,025 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: 4,5172024: 5,44921%
Drugs named by CMS: 95 in 2024, 81 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
How Dr. Geoffrey Stewart Long takes part in Medicare
Dr. Long 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)
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Dr. Geoffrey Stewart Long graduated from Saint Louis University School of Medicine
Dr. Long graduated from Saint Louis University School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Geoffrey Stewart Long'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 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) |
| 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. Geoffrey Stewart Long
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What is Dr. Geoffrey Stewart Long's NPI number?
Dr. Geoffrey Stewart Long's NPI number is 1962579037. It was assigned on November 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey Stewart Long?
Dr. Geoffrey Stewart Long is an internist in Reston, Virginia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Geoffrey Stewart Long practice?
Dr. Long practices at 1890 Metro Center Dr, Reston, VA 20190. Dr. Long's primary practice is Reston Medical Center in Reston, Virginia. Dmand AI also links Dr. Long to 2 home health agencies and 1 group practice or clinic.
What is Dr. Geoffrey Stewart Long's office phone number?
The practice phone on file for Dr. Long is (703) 709-1560.
What is Dr. Geoffrey Stewart Long's medical license number?
Dr. Long holds Virginia license 0101056289.
What medical group is Dr. Geoffrey Stewart Long part of?
Dr. Long is linked to Mid-Atlantic Permanente Medical Group.
Does Dr. Geoffrey Stewart Long accept Medicare?
Yes. CMS data shows Dr. Long billed Medicare for 19 services in 2024, and Dr. Long accepts Medicare assignment.
How many Medicare patients does Dr. Geoffrey Stewart Long see?
CMS counts 17 Medicare patients who saw Dr. Long in 2024, with an average age of 74.
What services does Dr. Geoffrey Stewart Long bill to Medicare?
In 2024, Dr. Long's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Geoffrey Stewart Long go to medical school?
Dr. Long graduated from Saint Louis University School of Medicine in 1996.
What drugs does Dr. Geoffrey Stewart Long prescribe most?
In 2024 Medicare Part D data, Dr. Long's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
How long has Dr. Geoffrey Stewart Long been practicing?
Dr. Long graduated from medical school in 1996, 30 years ago.
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