Doctor profile · Federal record

Dr. Daniel Muller, MD PHD

Rheumatology Physician (CMS: Rheumatology) · Rheumatology Physician · Fort Collins, CO

  • NPI 1073589016
  • Accepts Medicare
  • MIPS 93.3 / 100 · 2023
  • 41 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2121 E Harmony RD, Suite 230
Fort Collins, CO 805283400
(970) 350-2433
fax (970) 593-9731

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
August 16, 2016
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State licenses (2)
Colorado #DR.0057117 · Wisconsin #32216

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1073589016. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,130
Distinct HCPCS
8
Medicare allowed
$215,352
HCPCS Description Services Patients Avg allowed
J1745 Injection, infliximab, excludes biosimilar, 10 mg 3,250 13 $33
J0897 Injection, denosumab, 1 mg 1,140 15 $23
99214 Established patient office or other outpatient visit, 30-39 minutes 386 225 $131
96413 Administration of chemotherapy into vein, 1 hour or less 87 39 $123
96415 Administration of chemotherapy into vein, each additional hour 82 33 $29
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 76 29 $67
99204 New patient office or other outpatient visit, 45-59 minutes 72 72 $170
96372 Injection of drug or substance under skin or into muscle 37 22 $15

In context: peer comparison

Among 1 peers in Fort Collins Rheumatology Physician, average services per provider: 641. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$88
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Genzyme Corporation 1 $87.94

By nature of payment

Food and Beverage
$88

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,640
Patients
414
Total drug cost
$1,714,265
Drug Type Claims Patients Total cost
Prednisone Generic 585 169 $9,233
Hydroxychloroquine Sulfate Generic 266 84 $26,054
Methotrexate (Methotrexate Sodium) Brand 233 72 $12,284
Humira(Cf) Pen (Adalimumab) Brand 93 11 $788,577
Mycophenolate Mofetil Generic 53 12 $22,053
Alendronate Sodium Generic 51 14 $745
Meloxicam Generic 49 11 $498
Allopurinol Generic 48 16 $873
Sulfasalazine Generic 48 0 $1,555
Folic Acid Generic 44 13 $204

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel Muller's medical specialty?
Dr. Daniel Muller practices Rheumatology Physician in Fort Collins, CO.
Where does Dr. Daniel Muller practice?
Dr. Daniel Muller practices at 2121 E Harmony RD, Fort Collins, CO 805283400. Office phone: 9703502433.
What is Dr. Daniel Muller's NPI?
Dr. Daniel Muller's National Provider Identifier (NPI) is 1073589016, issued by NPPES.
Does Dr. Daniel Muller accept Medicare assignment?
Yes. Dr. Daniel Muller accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel Muller commonly perform?
Top Medicare-reported procedures in 2023: Injection, infliximab, excludes biosimilar, 10 mg (HCPCS J1745); Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.