Jonna Maas, M.D.
NPI 1699187831 · Internal Medicine Physician · Marshall, MN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonna Maas, M.D. is a Internal Medicine Physician provider in Marshall, MN (NPI 1699187831).
Provider details
- NPI number
- 1699187831
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 61915 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
838 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 444 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 145 | $117 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 68 | $113 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 65 | $170 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 60 | $8 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 18 | 16 |
| Metoprolol Tartrate | 13 | — |
| Potassium Chloride | 12 | — |
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 no Part D record, 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
Additional practice locations (1)
- 420 Delaware Street Se Phillips Wangensteen Building14th Floor, Suite 100bMinneapolis, MN 55455Phone: (612) 624-0990Fax: (612) 625-3238
Registry dates
- Enumerated
- 2014-05-22
- Last updated
- 2018-10-12
Frequently asked questions
- What is Jonna Maas's NPI number?
- Jonna Maas's National Provider Identifier (NPI) is 1699187831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonna Maas's specialty?
- Jonna Maas is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonna Maas located?
- Jonna Maas's practice location on file with NPPES is 300 S Bruce St, Marshall, MN 56258-1934.
- What is Jonna Maas's phone number?
- The practice phone number listed in the NPPES registry for Jonna Maas is (507) 532-9661.
- Does Jonna Maas accept Medicare?
- Jonna Maas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonna Maas's NPI active?
- Yes — Jonna Maas's NPI (1699187831) is active in the NPPES registry as of the last update on 2018-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.