Doctor profile · Federal record
Dr. Robert Kloss, M.D.
Hematology & Oncology Physician (CMS: Medical Oncology) · Danbury, CT
- NPI 1649207770
- Accepts Medicare
- MIPS 89.1 / 100 · 2023
- 50 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
24 Hospital Ave
Danbury, CT 068106099
(203) 797-7029
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 3, 2010
- Year of graduation
- 1976 — 50 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Connecticut #022825
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649207770. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,369
Distinct HCPCS
10
Medicare allowed
$130,432
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 775 | 190 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 767 | 296 | $96 | |
36415 |
Insertion of needle into vein for collection of blood sample | 455 | 200 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 261 | 102 | $137 | |
99195 |
Drawing of blood for a medical problem | 29 | 11 | $108 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 28 | 14 | $52 | |
99347 |
Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes | 15 | 14 | $47 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $178 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 13 | 11 | $88 | |
38222 |
Biopsy and aspiration of bone marrow sample for diagnosis | 12 | 12 | $183 |
In context: peer comparison
Among 6 peers in Danbury Hematology & Oncology Physician, average services per provider: 141. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$2,552
Transactions
87
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 14 | $315.94 | |
| Novartis Pharmaceuticals Corporation | 7 | $172.33 | |
| Celgene Corporation | 14 | $147.96 | |
| AstraZeneca Pharmaceuticals Lp | 6 | $141.81 | |
| Janssen Biotech, INC. | 7 | $135.49 | |
| E.R. Squibb & Sons, L.L.C. | 6 | $135.36 | |
| Pfizer INC. | 6 | $117.45 | |
| Merck Sharp & Dohme LLC | 4 | $100.27 | |
| GlaxoSmithKline, LLC. | 4 | $88.82 | |
| Exelixis INC. | 3 | $81.58 | |
| Mirati Therapeutics, INC. | 3 | $80.46 | |
| Jazz Pharmaceuticals INC. | 4 | $78.88 | |
| Array Biopharma INC | 3 | $72.81 | |
| Daiichi Sankyo INC. | 3 | $65.90 | |
| Incyte Corporation | 3 | $63.74 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
649
Patients
110
Total drug cost
$2,447,482
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 94 | 21 | $623 |
| Abiraterone Acetate | Generic | 90 | 11 | $266,797 |
| Imbruvica (Ibrutinib) | Brand | 57 | 0 | $940,597 |
| Erleada (Apalutamide) | Brand | 43 | 0 | $629,951 |
| Letrozole | Generic | 42 | 13 | $1,203 |
| Xtandi (Enzalutamide) | Brand | 41 | 0 | $598,316 |
| Exemestane | Generic | 37 | 0 | $5,719 |
| Gabapentin | Generic | 37 | 13 | $481 |
| Pantoprazole Sodium | Generic | 37 | 16 | $822 |
| Ondansetron Hcl | Generic | 36 | 24 | $271 |
Hospital affiliations
Frequently asked questions
What is Dr. Robert Kloss's medical specialty?
Dr. Robert Kloss practices Hematology & Oncology Physician in Danbury, CT.
Where does Dr. Robert Kloss practice?
Dr. Robert Kloss practices at 24 Hospital Ave, Danbury, CT 068106099. Office phone: 2037977029.
What is Dr. Robert Kloss's NPI?
Dr. Robert Kloss's National Provider Identifier (NPI) is 1649207770, issued by NPPES.
Does Dr. Robert Kloss accept Medicare assignment?
Yes. Dr. Robert Kloss accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Kloss commonly perform?
Top Medicare-reported procedures in 2023: Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.