Johanna Allen Arntzen, CNM
NPI 1831796721 · Advanced Practice Midwife · New York, NY
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johanna Allen Arntzen, CNM is a Advanced Practice Midwife provider in New York, NY (NPI 1831796721).
Provider details
- NPI number
- 1831796721
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- Yes
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
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Metronidazole | 11 |
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
Registry dates
- Enumerated
- 2020-10-05
- Last updated
- 2023-08-03
- Certified
- 2023-08-03
Frequently asked questions
- What is Johanna Allen Arntzen's NPI number?
- Johanna Allen Arntzen's National Provider Identifier (NPI) is 1831796721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johanna Allen Arntzen's specialty?
- Johanna Allen Arntzen is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Johanna Allen Arntzen located?
- Johanna Allen Arntzen's practice location on file with NPPES is 4781 Broadway, New York, NY 10034-4915.
- What is Johanna Allen Arntzen's phone number?
- The practice phone number listed in the NPPES registry for Johanna Allen Arntzen is (212) 304-6920.
- Does Johanna Allen Arntzen accept Medicare?
- Johanna Allen Arntzen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johanna Allen Arntzen's NPI active?
- Yes — Johanna Allen Arntzen's NPI (1831796721) is active in the NPPES registry as of the last update on 2023-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.