Physician Profile
Robert M. Rifkin, MD
Unclaimed ProfileAbout Dr. Rifkin
Based in Denver, CO, Robert M. Rifkin, MD is listed in the NPI registry under hematology & oncology. Robert graduated from University of Colorado School of Medicine, Denver in 1982. According to Medicare claims data, Robert cared for 2,685 Medicare patients across 53,822 services. The services billed most often include injection, pembrolizumab, 1 mg, injection, lanreotide, 1 mg, and injection, fosaprepitant, 1 mg.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (303) 388-4876
- Email not available
Practice Locations
1800 N WILLIAMS ST STE 200
Denver, CO 80218
Conditions Commonly Evaluated or Treated
Within Hematology and Oncology 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
- Anemia
- Blood clots
- Breast cancer
- Colon cancer
- Iron-deficiency anemia
- Leukemia
- Lung cancer
- Lymphoma
- Prostate cancer
Advanced Cancers
Blood & Lymph Disorders
Blood Cancers
Blood Disorders
- Bleeding Disorders
- Blood Clot in Lung
- Blood Clotting Gene Mutation
- Deep vein thrombosis
- Hemochromatosis
- High Platelet Count
- High White Blood Cell Count
- Low Platelets
- Low White Blood Cell Count
- Thick Blood
- Unexplained Bruising
Blood disorders
- Bone Marrow Scarring
- Hemolytic Anemia in Children
- Pre-Myeloma Protein In Blood
- Vitamin B12 deficiency anemia
Bone & Soft Tissue Cancers
Digestive Cancers
Endocrine Cancers
Endocrine tumors
Gastrointestinal cancer
General oncology
Genetic Blood Disorders
Gynecologic cancer
Gynecologic Cancers
Head & Neck Cancers
Head and neck cancer
Neurologic Cancers
Oncologic emergencies
Ophthalmologic oncology
Skin cancer
Skin Cancers
Urologic Cancers
Procedures & services
Most searched procedures
Biopsies & Diagnostics
Blood disorder care
Cancer Therapies
Cancer therapy
- Chemo allergy desensitization
- Oral chemotherapy management
- Radiation oncology consultation
- Spinal chemo injection
Cellular Therapies
Consultations
Diagnostic testing
Hematology Treatments
Imaging
Infusions
Interventional oncology
Supportive Cancer Care
- Bone Strengthening Injections For Cancer
- Pain Management For Cancer
- Red Blood Cell Booster Shot
- White Blood Cell Booster Injection
Supportive cancer care
- Cancer nutrition counseling
- Chemo brain treatment
- Cold cap therapy for hair loss
- Fertility Preservation for Teens Before Cancer Treatment
- Hyperbaric oxygen for radiation damage
- Lymphedema Drainage Therapy
- Palliative cancer care
Surgical & Vascular Access
- Chemo port placement
- Chemo port removal
- Draining lung fluid
- Paracentesis
- PICC line placement coordination
Testing & Genetics
Vascular access care
Procedures Most Often Billed to Medicare
53,822 services · 2,685 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
1,051 | More often than most peers in Hematology & Oncology |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
229 | As often as other peers in Hematology & Oncology |
| Injection, pembrolizumab, 1 mg | Drug given | J9271 |
17,400 | More often than most peers in Hematology & Oncology |
| Injection, lanreotide, 1 mg | Drug given | J1930 |
10,170 | More than most peers in Hematology & Oncology |
| Injection, fosaprepitant, 1 mg | Drug given | J1453 |
4,200 | Less often than most peers in Hematology & Oncology |
| Injection, aprepitant, 1 mg | Drug given | J0185 |
3,510 | Less often than most peers in Hematology & Oncology |
| Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | Drug given | J1568 |
2,260 | As often as other peers in Hematology & Oncology |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
1,590 | As often as other peers in Hematology & Oncology |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,260 | Less often than most peers in Hematology & Oncology |
| Injection, palonosetron hcl, 25 mcg | Drug given | J2469 |
670 | As often as other peers in Hematology & Oncology |
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 cancer specialists at this location 3
Same specialty, same street address — most likely the same department or group.
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.
Other cancer specialists in Denver 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Colorado School of Medicine, Denver 7
Other providers in the same specialty who trained at the same institution.
Class of 1982 at University of Colorado School of Medicine, Denver 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 CO who bill this service to Medicare most often.
Common questions
What is Dr. Rifkin's specialty?
Dr. Rifkin is a cancer specialist in Denver, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Hematology & Oncology”.
NPI registry
Where can I find Dr. Rifkin?
Dr. Rifkin is listed at 1800 N Williams St Ste 200, Denver, CO 80218. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Rifkin?
The number on file is (303) 388-4876. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Rifkin's NPI number?
Dr. Rifkin's National Provider Identifier is 1134103476. 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 Dr. Rifkin's medical education?
Dr. Rifkin attended University of Colorado School of Medicine, Denver, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Rifkin been practicing?
Dr. Rifkin has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Rifkin known for?
According to Medicare billing data, Dr. Rifkin performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as administration of chemotherapy into vein, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Rifkin confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Rifkin. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.