Doctor profile · Federal record
Dr. David Haas, DC
Chiropractor (CMS: Chiropractic) · Mason City, IA
- NPI 1366454332
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1403 S. Federal Ave.
Mason City, IA 50401
(641) 424-6531
fax (641) 424-6532
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 17, 2008
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 111N00000X — NUCC code
- State license (1)
- Iowa #06802
- Medicaid
- IA #0482919
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366454332. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,243
Distinct HCPCS
2
Medicare allowed
$45,069
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
98941 |
Chiropractic manipulative treatment, 3-4 spinal regions | 1,075 | 114 | $38 | |
98940 |
Chiropractic manipulative treatment, 1-2 spinal regions | 168 | 40 | $26 |
In context: peer comparison
Among 5 peers in Mason City Chiropractor, average services per provider: 833. This provider delivers 1.5× the peer median.Frequently asked questions
What is Dr. David Haas's medical specialty?
Dr. David Haas practices Chiropractor in Mason City, IA.
Where does Dr. David Haas practice?
Dr. David Haas practices at 1403 S. Federal Ave., Mason City, IA 50401. Office phone: 6414246531.
What is Dr. David Haas's NPI?
Dr. David Haas's National Provider Identifier (NPI) is 1366454332, issued by NPPES.
Does Dr. David Haas accept Medicare assignment?
Yes. Dr. David Haas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Haas commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941); Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.