Ruby Ko, NP
NPI 1992732275 · Advanced Practice Midwife · New York, NY
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruby Ko, NP is a Advanced Practice Midwife provider in New York, NY (NPI 1992732275).
Provider details
- NPI number
- 1992732275
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 000695 (NY)
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
3 documented practice locations
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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metronidazole | 35 | 32 |
| Estradiol | 18 | 11 |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 15 | 14 |
| Fluconazole | 14 | 14 |
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 (2)
- 268 Canal StNew York, NY 10013-3599Phone: (212) 966-0228Fax: (212) 966-9330
- 227 Madison StNew York, NY 10002-7537Phone: (212) 238-7244
Registry dates
- Enumerated
- 2006-06-26
- Last updated
- 2019-06-12
Frequently asked questions
- What is Ruby Ko's NPI number?
- Ruby Ko's National Provider Identifier (NPI) is 1992732275, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruby Ko's specialty?
- Ruby Ko is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ruby Ko located?
- Ruby Ko's practice location on file with NPPES is 227 Madison St, New York, NY 10002.
- What is Ruby Ko's phone number?
- The practice phone number listed in the NPPES registry for Ruby Ko is (212) 238-7244.
- Does Ruby Ko accept Medicare?
- Ruby Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruby Ko's NPI active?
- Yes — Ruby Ko's NPI (1992732275) is active in the NPPES registry as of the last update on 2019-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.