Doctor profile · Federal record
Dr. Timothy Sass, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Princeton, NJ
- NPI 1265573166
- MIPS 26.2 / 100 · 2023
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
281 Witherspoon St, Suite 220
Princeton, NJ 085403210
(609) 921-3362
fax (609) 921-3584
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- January 12, 2012
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- New Jersey #25MA05084900
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265573166. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,778
Distinct HCPCS
10
Medicare allowed
$223,215
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
94762 |
Test to measure oxygen level in blood using ear or finger device continuously overnight | 774 | 269 | $27 | |
36415 |
Insertion of needle into vein for collection of blood sample | 351 | 240 | $8 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 325 | 226 | $181 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 311 | 158 | $92 | |
81002 |
Urinalysis, manual test | 304 | 245 | $3 | |
83518 |
Analysis of substance using immunoassay technique, single step method | 300 | 243 | $9 | |
83036 |
Hemoglobin a1c level | 276 | 234 | $10 | |
82962 |
Blood glucose (sugar) test performed by hand-held instrument | 273 | 234 | $3 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 257 | 226 | $15 | |
82270 |
Stool analysis for blood to screen for colon tumors | 234 | 234 | $4 |
In context: peer comparison
Among 15 peers in Princeton Internal Medicine Physician, average services per provider: 131. This provider delivers 36× the peer median.Open Payments
Industry payments received
All-time total
$271
Transactions
10
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 3 | $157.57 | |
| Pfizer INC. | 2 | $31.70 | |
| Novo Nordisk INC | 1 | $17.71 | |
| Exact Sciences Corporation | 1 | $17.55 | |
| Amgen INC. | 1 | $16.63 | |
| Merck Sharp & Dohme LLC | 1 | $15.88 | |
| Idorsia Pharmaceuticals US INC | 1 | $13.81 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,511
Patients
529
Total drug cost
$25,856
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 318 | 77 | $2,970 |
| Atorvastatin Calcium | Generic | 170 | 47 | $1,836 |
| Valsartan | Generic | 123 | 35 | $5,209 |
| Triamterene-Hydrochlorothiazid (Triamterene/Hydrochlorothiazid) | Brand | 107 | 28 | $1,773 |
| Celecoxib | Generic | 101 | 65 | $2,426 |
| Cefuroxime (Cefuroxime Axetil) | Brand | 89 | 70 | $1,301 |
| Atenolol | Generic | 86 | 23 | $860 |
| Rosuvastatin Calcium | Generic | 83 | 23 | $1,479 |
| Etodolac | Generic | 79 | 63 | $1,207 |
| Pravastatin Sodium | Generic | 79 | 21 | $1,307 |
Frequently asked questions
What is Dr. Timothy Sass's medical specialty?
Dr. Timothy Sass practices Internal Medicine Physician in Princeton, NJ.
Where does Dr. Timothy Sass practice?
Dr. Timothy Sass practices at 281 Witherspoon St, Princeton, NJ 085403210. Office phone: 6099213362.
What is Dr. Timothy Sass's NPI?
Dr. Timothy Sass's National Provider Identifier (NPI) is 1265573166, issued by NPPES.
Does Dr. Timothy Sass accept Medicare assignment?
Dr. Timothy Sass does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Timothy Sass commonly perform?
Top Medicare-reported procedures in 2023: Test to measure oxygen level in blood using ear or finger device continuously overnight (HCPCS 94762); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.