Dr. Robert Alan Nussbaum, MD
- Medicare services, 2024
- 985
- Medicare patients, 2024
- 476
- Part D claims, 2024
- 711
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- Practice address
- 6355 Walker Ln, Alexandria, VA 22310
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Franconia-Springfield Surgery Center - HOPD
Acute Care Hospital outpatient department · Alexandria, Virginia
Find Dr. Nussbaum's professional email, personal email and mobile number
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Dr. Robert Alan Nussbaum is a gastroenterologist in Alexandria, Virginia
Dr. Nussbaum practices at Franconia-Springfield Surgery Center - HOPD in Alexandria, Virginia.
Dr. Nussbaum's NPI, 1659364511, was assigned on August 25, 2005. Dr. Nussbaum graduated from Icahn School of Medicine at Mount Sinai in 1986. Dr. Nussbaum holds Virginia license 0101047887.
- NPI
- 1659364511NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638345572
- NPI enumeration date
- August 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Alan Nussbaum practices at Franconia-Springfield Surgery Center - HOPD in Alexandria, Virginia
Dr. Nussbaum's primary practice is Franconia-Springfield Surgery Center - HOPD, at 6355 Walker Ln, Alexandria, VA 22310.
- Franconia-Springfield Surgery Center - HOPD6355 Walker Ln, Alexandria, VA 22310
Source: Dmand AI Affiliation Data
Dr. Robert Alan Nussbaum is affiliated with 7 sites of care and 1 medical group
Dr. Nussbaum's primary practice is Franconia-Springfield Surgery Center - HOPD in Alexandria, Virginia. Dr. Nussbaum is also affiliated with Inova Alexandria Hospital. The medical group on file is Privia Medical Group. Dmand AI also links Dr. Nussbaum to 2 more hospitals, 1 physician office, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert Alan Nussbaum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nussbaum practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Franconia-Springfield Surgery Center - HOPD | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Alan Nussbaum is one of 494 gastroenterologists in Virginia
Gastroenterology is Dr. Nussbaum's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Nussbaum is licensed in Virginia.
Specialties and state licenses
- Gastroenterology, VirginiaPrimary
Gastroenterologists near Dr. Nussbaum
Counts of gastroenterologists 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. Robert Alan Nussbaum billed Medicare for 985 services in 2024
CMS data shows 985 Medicare services from Dr. Nussbaum across 7 procedure codes in 2024, for 476 Medicare patients. Medicare paid $106,460 for them.
Dr. Nussbaum's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5102024: 5365%
- Surgery
- 2023: 4542024: 4237%
- Other services
- 2023: 282024: 267%
Where Dr. Nussbaum's Medicare services took place, 2024
- In an office53654%
- In a facility44946%
Dr. Nussbaum compared with the Virginia median for gastroenterologists, 2024
- Dr. Nussbaum
- Virginia median
- Medicare services
- 985vs 52488% above
- Medicare patients
- 476vs 36231% above
- Part D claims
- 596vs 2902.1 times
Medians across 484 gastroenterologists in Virginia with Dmand AI profiles that report each measure.
Dr. Nussbaum'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. Nussbaum and other gastroenterologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Alan Nussbaum treated 476 Medicare patients in 2024, average age 73
CMS counts 476 Medicare patients who saw Dr. Nussbaum in 2024. The largest group is 65 to 74, with 278 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 3% are also on Medicaid. Their average risk score is 0.78, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nussbaum's median patient age at 64, with 49% women.
Dr. Nussbaum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nussbaum's Medicare patients by sex, 2024
- Women26556%
- Men21144%
Chronic conditions among Dr. Nussbaum's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis39%
- Diabetes21%
- Ischemic heart disease21%
- Cancer17%
- Anxiety16%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nussbaum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women49%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Alan Nussbaum wrote 711 Medicare Part D claims in 2024
In 2024, Dr. Nussbaum wrote 711 Medicare Part D claims for 349 patients. 84% of them were for generic drugs. CMS names the drug for 596 of them, across 11 drugs with 11 or more claims each, at $59,703 in total drug cost. In 2023, CMS named 388 claims across 11 drugs.
Dr. Nussbaum's Part D claims by kind of drug, 2024
- Generic597 claims84%
- Brand-name114 claims16%
Dr. Nussbaum'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: 3882024: 59654%
Drugs named by CMS: 11 in 2024, 11 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. Robert Alan Nussbaum scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Nussbaum for performance year 2024, reported individually. Dr. Nussbaum accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 46 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Nussbaum, more than 62% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Nussbaum's MIPS scores, performance year 2024
- 89of 100Final score
- 99.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 64of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Nussbaum ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 62nd percentile46 procedures
- Colonoscopy
- 50th percentile24 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert Alan Nussbaum received $777 in industry payments from 2017 to 2025
CMS Open Payments shows 10 general payments to Dr. Nussbaum from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $705.
General payments to Dr. Nussbaum by program year, 2017 to 2025
Companies that paid Dr. Nussbaum the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Alan Nussbaum graduated from Icahn School of Medicine at Mount Sinai
Dr. Nussbaum graduated from Icahn School of Medicine at Mount Sinai in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert Alan Nussbaum'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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Robert Alan Nussbaum
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. Robert Alan Nussbaum's NPI number?
Dr. Robert Alan Nussbaum's NPI number is 1659364511. It was assigned on August 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Alan Nussbaum?
Dr. Robert Alan Nussbaum is a gastroenterologist in Alexandria, Virginia. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Robert Alan Nussbaum practice?
Dr. Nussbaum practices at 6355 Walker Ln, Alexandria, VA 22310. Dr. Nussbaum's primary practice is Franconia-Springfield Surgery Center - HOPD in Alexandria, Virginia. Dmand AI also links Dr. Nussbaum to 2 hospitals, 1 physician office, 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Robert Alan Nussbaum's medical license number?
Dr. Nussbaum holds Virginia license 0101047887.
Which hospitals is Dr. Robert Alan Nussbaum affiliated with?
Dr. Nussbaum is affiliated with Inova Alexandria Hospital. Dmand AI links Dr. Nussbaum to 2 more hospitals.
What medical group is Dr. Robert Alan Nussbaum part of?
Dr. Nussbaum is linked to Privia Medical Group.
Does Dr. Robert Alan Nussbaum accept Medicare?
Yes. CMS data shows Dr. Nussbaum billed Medicare for 985 services in 2024, and Dr. Nussbaum accepts Medicare assignment.
What is Dr. Robert Alan Nussbaum's MIPS score?
Dr. Nussbaum's MIPS final score for performance year 2024 is 89 out of 100, reported individually.
How many Medicare patients does Dr. Robert Alan Nussbaum see?
CMS counts 476 Medicare patients who saw Dr. Nussbaum in 2024, with an average age of 73.
What services does Dr. Robert Alan Nussbaum bill to Medicare?
In 2024, Dr. Nussbaum's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: digestive system (45385).
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Where did Dr. Robert Alan Nussbaum go to medical school?
Dr. Nussbaum graduated from Icahn School of Medicine at Mount Sinai in 1986.
What drugs does Dr. Robert Alan Nussbaum prescribe most?
In 2024 Medicare Part D data, Dr. Nussbaum's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf, Omeprazole and Famotidine.
Has Dr. Robert Alan Nussbaum received payments from drug or device companies?
CMS Open Payments shows $777 in general payments to Dr. Nussbaum from 3 companies from 2017 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Robert Alan Nussbaum been practicing?
Dr. Nussbaum graduated from medical school in 1986, 40 years ago.
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