Are you Timothy E. Sass, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 281 Witherspoon St, Suite 220, Princeton, NJ 08540
About Dr. Sass
Timothy E. Sass, M.D. practices internal medicine in Princeton, NJ. Timothy is a 1984 graduate of George Washington University School of Medicine. According to Medicare claims data, Timothy cared for 3,771 Medicare patients across 5,083 services. The services billed most often include test to measure oxygen level in blood using ear or finger device continuously overnight, insertion of needle into vein for collection of blood sample, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1265573166.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (609) 921-3362
- Email not available
Practice Locations
281 WITHERSPOON ST SUITE 220
Princeton, NJ 08540
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
- EKG
- Spirometry
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
- Pre-Op Clearance Exam
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
- Urinalysis
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
- Smoking cessation counseling
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
5,083 services · 3,771 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
335 | More often than most peers in Internal Medicine |
| Test to measure oxygen level in blood using ear or finger device continuously overnight | Treatment | 94762 |
832 | Too few peers to compare |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
255 | More than most peers in Internal Medicine |
| Assessment of emotional or behavioral problems | Treatment | 96127 |
128 | More often than most peers in Internal Medicine |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
119 | More than most peers in Internal Medicine |
| Pneumococcal vaccine, 23-valent | Treatment | 90732 |
47 | More than most peers in Internal Medicine |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
45 | As often as other peers in Internal Medicine |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
25 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
322 | More often than most peers in Internal Medicine |
| Analysis of substance using immunoassay technique, single step method | Lab test | 83518 |
299 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other internists in Princeton 8
Same specialty, same city.
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at George Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What is Timothy E. Sass's specialty?
Timothy E. Sass is an internist in Princeton, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Timothy E. Sass?
Timothy E. Sass is listed at 281 Witherspoon St Suite 220, Princeton, NJ 08540. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Timothy E. Sass?
The number on file is (609) 921-3362. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Timothy E. Sass's NPI number?
Timothy E. Sass's National Provider Identifier is 1265573166. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Timothy E. Sass's education?
Timothy E. Sass attended George Washington University School of Medicine, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Timothy E. Sass been practicing?
Timothy E. Sass has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What is Timothy E. Sass known for?
According to Medicare billing data, Timothy E. Sass performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as test to measure oxygen level in blood using ear or finger device continuously overnight and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Timothy E. Sass confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Timothy E. Sass. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.