OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Robert Rifkin
๐ŸŽ—๏ธ
MDIndividual

Robert Rifkin, MD

NPI: 1134103476
Denver, CO
10 years of data
Hematology-Oncology
$15.4M
Total Payments
464
Beneficiaries
688.8K
Services
4.18x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$15.4M
Specialty median$339.6K

๐Ÿ“‹ Key Findings

1Billed $15.4M over 10 years
24.18x markup ratio (above median)
399th percentile in Hematology-Oncology by payments
4276 services/day โ€” physically implausible
5Payments surged 79% in 2023
617 procedures with >3x markup

โš ๏ธ This provider averages 276 services per working day โ€” physically unusual for an individual practitioner

Based on 688.8K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $15.4M in total Medicare payments ranks in the 99th percentile of Hematology-Oncology providers nationally.

Averaging 276 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 268% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

๐Ÿ“ˆ

Notable: Payments increased 79% in 2023

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$100.84$23.834.23x$77.01$902.2K37.9K38
2015$65.62$15.334.28x$50.29$1.1M74.2K45
2016$112.45$26.964.17x$85.49$1.7M62.4K45
2017$89.15$22.004.05x$67.15$1.1M49.9K49
2018$79.47$19.744.03x$59.73$1.3M67.1K51
2019$72.85$17.564.15x$55.29$1.1M65.4K48
2020$64.65$13.644.74x$51.01$1.4M100.5K42
2021$97.98$23.514.17x$74.47$1.6M66.3K49
2022$115.44$25.504.53x$89.94$1.9M72.8K52
2023$137.71$35.963.83x$101.75$3.3M92.4K45

Top Procedures (20)

J9271Injection, pembrolizumab, 1 mgโš  3.4x markup
$1.8M
42.0K services$42.18/svc3.35x markup
J2505Injection, pegfilgrastim, 6 mgโš  4.8x markup
$1.7M
553 services$3.1K/svc4.85x markup
78815Nuclear medicine study from skull base to mid-thigh with ct scanโš  3.1x markup
$1.7M
1.4K services$1.2K/svc3.13x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$1.3M
15.5K services$81.52/svc2.84x markup
A9607Lutetium lu 177 vipivotide tetraxetan, therapeutic, 1 millicurie
$1.0M
5.4K services$193.71/svc2.93x markup
J0897Injection, denosumab, 1 mgโš  3.7x markup
$777.1K
52.9K services$14.70/svc3.67x markup
J9310Injection, rituximab, 100 mgโš  3.4x markup
$720.3K
1.2K services$616.14/svc3.37x markup
J1930Injection, lanreotide, 1 mgโš  4.5x markup
$592.8K
12.4K services$47.73/svc4.49x markup
A9595Piflufolastat f-18, diagnostic, 1 millicurieโš  3.4x markup
$419.0K
489 services$856.83/svc3.35x markup
J9144Injection, daratumumab, 10 mg and hyaluronidase-fihjโš  3.6x markup
$389.7K
10.3K services$37.98/svc3.59x markup
96413Administration of chemotherapy into vein, 1 hour or lessโš  6.1x markup
$378.5K
3.4K services$111.75/svc6.14x markup
G9678Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation a
$321.0K
2.0K services$157.90/svc1.01x markup
J9041Injection, bortezomib, 0.1 mgโš  3.4x markup
$316.8K
8.8K services$35.92/svc3.44x markup
A9587Gallium ga-68, dotatate, diagnostic, 0.1 millicurieโš  3.4x markup
$300.3K
907 services$331.10/svc3.37x markup
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mgโš  6.6x markup
$265.0K
8.0K services$33.18/svc6.62x markup
J9999Not otherwise classified, antineoplastic drugsโš  3.9x markup
$224.1K
60 services$3.7K/svc3.87x markup
J0881Injection, darbepoetin alfa, 1 microgram (non-esrd use)โš  6.7x markup
$156.4K
52.1K services$3.00/svc6.69x markup
J2353Injection, octreotide, depot form for intramuscular injection, 1 mgโš  3.5x markup
$154.7K
1.2K services$127.82/svc3.49x markup
80053Blood test, comprehensive group of blood chemicalsโš  5.5x markup
$149.5K
13.3K services$11.24/svc5.52x markup
A9588Fluciclovine f-18, diagnostic, 1 millicurieโš  3.2x markup
$141.6K
76 services$1.9K/svc3.24x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J9271Injection, pembrolizumab, 1 mg42.0K$1.8M$42.183.35x
J2505Injection, pegfilgrastim, 6 mg553$1.7M$3.1K4.85x
78815Nuclear medicine study from skull base to mid-thigh with ct scan1.4K$1.7M$1.2K3.13x
99214Established patient office or other outpatient visit, 30-39 minutes15.5K$1.3M$81.522.84x
A9607Lutetium lu 177 vipivotide tetraxetan, therapeutic, 1 millicurie5.4K$1.0M$193.712.93x
J0897Injection, denosumab, 1 mg52.9K$777.1K$14.703.67x
J9310Injection, rituximab, 100 mg1.2K$720.3K$616.143.37x
J1930Injection, lanreotide, 1 mg12.4K$592.8K$47.734.49x
A9595Piflufolastat f-18, diagnostic, 1 millicurie489$419.0K$856.833.35x
J9144Injection, daratumumab, 10 mg and hyaluronidase-fihj10.3K$389.7K$37.983.59x
96413Administration of chemotherapy into vein, 1 hour or less3.4K$378.5K$111.756.14x
G9678Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation a2.0K$321.0K$157.901.01x
J9041Injection, bortezomib, 0.1 mg8.8K$316.8K$35.923.44x
A9587Gallium ga-68, dotatate, diagnostic, 0.1 millicurie907$300.3K$331.103.37x
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg8.0K$265.0K$33.186.62x
J9999Not otherwise classified, antineoplastic drugs60$224.1K$3.7K3.87x
J0881Injection, darbepoetin alfa, 1 microgram (non-esrd use)52.1K$156.4K$3.006.69x
J2353Injection, octreotide, depot form for intramuscular injection, 1 mg1.2K$154.7K$127.823.49x
80053Blood test, comprehensive group of blood chemicals13.3K$149.5K$11.245.52x
A9588Fluciclovine f-18, diagnostic, 1 millicurie76$141.6K$1.9K3.24x

Markup Analysis

Charge-to-Payment Ratio

4.18x

This provider submits charges 4.18 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.18x means for every $100 Medicare pays, this provider initially charges $418. This is higher than the national average.

Location

Denver, CO

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Related

Browse
โ† Back to Provider Directory
State
All providers in CO โ†’
Specialty
All Hematology-Oncology providers โ†’
Tool
Compare this provider โ†’
Analysis
Fraud Watchlist โ†’
Search
Search all providers โ†’

Share This Provider

Share this provider's Medicare payment information

Share:

Data Sources

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

Believe this data is inaccurate? Dispute this data