Dr. Sassan Hassassian, MD
- Medicare services, 2024
- 3,517
- Medicare patients, 2024
- 299
- Part D claims, 2024
- 792
- MIPS score, 2024
- 98
- Hospital affiliations
- 2
- Practice address
- 8644 Sudley Road, Suite 201, Manassas, VA 20110
- Practice phone
- Call (703) 369-8525
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prince William Ambulatory Surgery Center
Surgery Center - Medicare-Certified · Manassas, Virginia
Find Dr. Hassassian's professional email, personal email and mobile number
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Dr. Sassan Hassassian is an interventional pain medicine physician in Manassas, Virginia
Dr. Hassassian practices at Prince William Ambulatory Surgery Center in Manassas, Virginia.
Dr. Hassassian's NPI, 1093719536, was assigned on June 13, 2005. Dr. Hassassian graduated from Eastern Virginia Medical School in 1992. Dr. Hassassian holds Virginia license 0101230362.
- NPI
- 1093719536NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840357612
- NPI enumeration date
- June 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 369-8525
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sassan Hassassian practices at Prince William Ambulatory Surgery Center in Manassas, Virginia
Dr. Hassassian's primary practice is Prince William Ambulatory Surgery Center, at 8644 Sudley Road, Suite 201, Manassas, VA 20110. The practice phone is (703) 369-8525.
- Prince William Ambulatory Surgery Center8644 Sudley Road, Suite 201, Manassas, VA 20110Phone(703) 369-8525
Source: Dmand AI Affiliation Data
Dr. Sassan Hassassian is affiliated with 5 sites of care and 2 medical groups
Dr. Hassassian's primary practice is Prince William Ambulatory Surgery Center in Manassas, Virginia. Dr. Hassassian is also affiliated with UVA Health Prince William Medical Center. The medical group on file is National Spine & Pain Centers. Dmand AI also links Dr. Hassassian to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sassan Hassassian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hassassian practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prince William Ambulatory Surgery Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sassan Hassassian is one of 52 interventional pain medicine physicians in Virginia
Interventional pain medicine is Dr. Hassassian's primary specialty in the NPI Registry, under taxonomy code 208VP0014X. Dr. Hassassian is licensed in Virginia.
Specialties and state licenses
- Interventional pain medicine, VirginiaPrimary
Interventional pain medicine physicians near Dr. Hassassian
Counts of interventional pain medicine physicians 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. Sassan Hassassian billed Medicare for 3,517 services in 2024
CMS data shows 3,517 Medicare services from Dr. Hassassian across 25 procedure codes in 2024, for 299 Medicare patients. Medicare paid $226,815 for them. Every service was in an office.
Dr. Hassassian's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 3,0492024: 1,90338%
- Surgery
- 2023: 1,1612024: 98315%
- Office and hospital visits
- 2023: 3752024: 44819%
- Imaging
- 2023: 2292024: 18320%
- Other services
- 2023: 2422024: 0100%
Dr. Hassassian compared with the Virginia median for interventional pain medicine physicians, 2024
- Dr. Hassassian
- Virginia median
- Medicare services
- 3,517vs 2,74528% above
- Medicare patients
- 299vs 299Close to median
- Part D claims
- 692vs 49640% above
Medians across 54 interventional pain medicine physicians in Virginia with Dmand AI profiles that report each measure.
Dr. Hassassian'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. Hassassian and other interventional pain medicine physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sassan Hassassian treated 299 Medicare patients in 2024, average age 74
CMS counts 299 Medicare patients who saw Dr. Hassassian in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have arthritis, and 75% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hassassian's median patient age at 61, with 58% women.
Dr. Hassassian's Medicare patients by age, 2024
Dr. Hassassian's Medicare patients by sex, 2024
- Women20167%
- Men9833%
Chronic conditions among Dr. Hassassian's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety32%
- Diabetes32%
- Mood disorders31%
- Ischemic heart disease29%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hassassian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sassan Hassassian wrote 792 Medicare Part D claims in 2024
In 2024, Dr. Hassassian wrote 792 Medicare Part D claims for 262 patients. 96% of them were for generic drugs. CMS names the drug for 692 of them, across 13 drugs with 11 or more claims each, at $10,258 in total drug cost. In 2023, CMS named 493 claims across 12 drugs.
Dr. Hassassian's Part D claims by kind of drug, 2024
- Generic759 claims96%
- Brand-name33 claims4%
Dr. Hassassian'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. Hassassian's Part D claims, 2024
- Opioids47%373 of 792 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: 4932024: 69240%
Drugs named by CMS: 13 in 2024, 12 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. Sassan Hassassian scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Hassassian for performance year 2024, reported as part of a group. Dr. Hassassian accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hassassian's MIPS scores, performance year 2024
- 98of 100Final score
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Sassan Hassassian received $45,707 in industry payments from 2016 to 2025
CMS Open Payments shows 928 general payments to Dr. Hassassian from 57 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 49% of the total. Abbott Laboratories paid the most, $20,396.
General payments to Dr. Hassassian by program year, 2016 to 2025
General payments to Dr. Hassassian by kind, 2016 to 2025
- Food and beverage$22,59049%
- Speaker and faculty fees$9,76621%
- Consulting fees$6,34014%
- Travel and lodging$3,1057%
- Other$3,9039%
Companies that paid Dr. Hassassian the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sassan Hassassian graduated from Eastern Virginia Medical School
Dr. Hassassian graduated from Eastern Virginia Medical School in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sassan Hassassian'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)Clinician Public Reporting: Overall MIPS Performance (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. Sassan Hassassian
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. Sassan Hassassian's NPI number?
Dr. Sassan Hassassian's NPI number is 1093719536. It was assigned on June 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Sassan Hassassian?
Dr. Sassan Hassassian is an interventional pain medicine physician in Manassas, Virginia. The primary specialty in the NPI Registry is Interventional Pain Medicine Physician (taxonomy code 208VP0014X).
Where does Dr. Sassan Hassassian practice?
Dr. Hassassian practices at 8644 Sudley Road, Suite 201, Manassas, VA 20110. Dr. Hassassian's primary practice is Prince William Ambulatory Surgery Center in Manassas, Virginia. Dmand AI also links Dr. Hassassian to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Sassan Hassassian's office phone number?
The practice phone on file for Dr. Hassassian is (703) 369-8525.
What is Dr. Sassan Hassassian's medical license number?
Dr. Hassassian holds Virginia license 0101230362.
Which hospitals is Dr. Sassan Hassassian affiliated with?
Dr. Hassassian is affiliated with UVA Health Prince William Medical Center. Dmand AI links Dr. Hassassian to 1 more hospital.
What medical group is Dr. Sassan Hassassian part of?
Dr. Hassassian is linked to National Spine & Pain Centers. Dmand AI links Dr. Hassassian to 1 more medical group.
Does Dr. Sassan Hassassian accept Medicare?
Yes. CMS data shows Dr. Hassassian billed Medicare for 3,517 services in 2024, and Dr. Hassassian accepts Medicare assignment.
What is Dr. Sassan Hassassian's MIPS score?
Dr. Hassassian's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Dr. Sassan Hassassian see?
CMS counts 299 Medicare patients who saw Dr. Hassassian in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Sassan Hassassian bill to Medicare?
In 2024, Dr. Hassassian's most billed Medicare services were injected or infused drug (J7322), office visit, established patient (99214) and radiation oncology (77002).
Where did Dr. Sassan Hassassian go to medical school?
Dr. Hassassian graduated from Eastern Virginia Medical School in 1992.
What drugs does Dr. Sassan Hassassian prescribe most?
In 2024 Medicare Part D data, Dr. Hassassian's most prescribed drugs by claims were Gabapentin, Oxycodone-Acetaminophen and Methocarbamol.
Has Dr. Sassan Hassassian received payments from drug or device companies?
CMS Open Payments shows $45,707 in general payments to Dr. Hassassian from 57 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Sassan Hassassian been practicing?
Dr. Hassassian graduated from medical school in 1992, 34 years ago.
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