Doctor profile · Federal record

Dr. David Massop, MD

Retina Specialist (Ophthalmology) Physician (CMS: Ophthalmology) · Des Moines, IA

  • NPI 1003267956
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1415 Woodland Ave, Suite 140
Des Moines, IA 503093203
(515) 241-8595
fax (515) 241-4080
Mailing address
309 E Church St
Marshalltown, IA 501582946

Credentials & registration

NPPES · NUCC
NPI registered
June 2016 — 10 yrs on file
Profile last updated
April 12, 2021
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207WX0107X — NUCC code
State license (1)
Iowa #47004

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003267956. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
95,338
Distinct HCPCS
10
Medicare allowed
$4,900,066
HCPCS Description Services Patients Avg allowed
J2777 Injection, faricimab-svoa, 0.1 mg 86,040 334 $36
92134 Imaging of retina 2,745 985 $37
67028 Injection of drug into eye 2,115 581 $113
J2778 Injection, ranibizumab, 0.1 mg 1,376 108 $228
J0178 Injection, aflibercept, 1 mg 1,000 162 $861
99213 Established patient office or other outpatient visit, 20-29 minutes 458 362 $83
92014 Established patient complete exam of visual system 329 306 $116
J3590 Unclassified biologics 257 83 $111
99214 Established patient office or other outpatient visit, 30-39 minutes 230 176 $118
92250 Photography of the retina 190 145 $33

In context: peer comparison

Among 1 peers in Des Moines Retina Specialist (Ophthalmology) Physician, average services per provider: 3,972. This provider delivers 24× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$740
Transactions
11
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Dutch Ophthalmic, USA 3 $312.81
Regeneron Healthcare Solutions, INC. 5 $201.42
Genentech USA, INC. 1 $118.03
Regeneron Pharmaceuticals, INC. 1 $83.73
Bausch & Lomb Americas INC. 1 $23.60

By nature of payment

Food and Beverage
$740

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
500
Patients
249
Total drug cost
$20,005
Drug Type Claims Patients Total cost
Prednisolone Acetate Generic 237 131 $12,776
Moxifloxacin (Moxifloxacin Hcl) Brand 100 79 $3,506
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 43 26 $711
Latanoprost Generic 35 0 $978
Dorzolamide Hcl Generic 20 0 $282
Timolol Maleate Generic 20 0 $210
Brimonidine Tartrate Generic 19 0 $1,265
Polymyxin B Sul-Trimethoprim (Polymyxin B Sulf/Trimethoprim) Brand 13 13 $129
Prednisone Generic 13 0 $149

Frequently asked questions

Auto-generated from federal data
What is Dr. David Massop's medical specialty?
Dr. David Massop practices Retina Specialist (Ophthalmology) Physician in Des Moines, IA.
Where does Dr. David Massop practice?
Dr. David Massop practices at 1415 Woodland Ave, Des Moines, IA 503093203. Office phone: 5152418595.
What is Dr. David Massop's NPI?
Dr. David Massop's National Provider Identifier (NPI) is 1003267956, issued by NPPES.
Does Dr. David Massop accept Medicare assignment?
Yes. Dr. David Massop accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Massop commonly perform?
Top Medicare-reported procedures in 2023: Injection, faricimab-svoa, 0.1 mg (HCPCS J2777); Imaging of retina (HCPCS 92134); Injection of drug into eye (HCPCS 67028). Source: CMS Medicare Physician & Other Practitioners file.