Jeffrey Mason, PAC
NPI 1669595344 · Physician Assistant · Cedar Rapids, IA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Mason, PAC is a Physician Assistant provider in Cedar Rapids, IA (NPI 1669595344).
Provider details
- NPI number
- 1669595344
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC
- Sex
- Male
- Sole proprietor
- No
- License
- 001424 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 31 | 30 |
| Cephalexin | 18 | 18 |
| Cefdinir | 17 | 16 |
| Ondansetronbrand: Ondansetron Odt | 14 | 14 |
| Prednisone | 14 | 14 |
| Doxycycline Monohydrate | 13 | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jeffrey Mason's NPI number?
- Jeffrey Mason's National Provider Identifier (NPI) is 1669595344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Mason's specialty?
- Jeffrey Mason is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jeffrey Mason located?
- Jeffrey Mason's practice location on file with NPPES is 1026 a Ave Ne, Cedar Rapids, IA 52402-5036.
- What is Jeffrey Mason's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Mason is (319) 369-7105.
- Does Jeffrey Mason accept Medicare?
- Jeffrey Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Mason's NPI active?
- Yes — Jeffrey Mason's NPI (1669595344) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.