Heather Ross Blackford, D.O.
NPI 1821338591 · Obstetrics & Gynecology Physician · Longview, WA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Ross Blackford, D.O. is a Obstetrics & Gynecology Physician provider in Longview, WA (NPI 1821338591).
Provider details
- NPI number
- 1821338591
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- OP60740193 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 29 | 15 |
| Norethindrone Acetate | 25 | — |
| Sertraline Hcl | 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 (4)
- 2213 Cherry StToledo, OH 43608-2603Phone: (419) 251-6530Fax: (419) 251-6849
- 3200 Squalicum PkwyBellingham, WA 98225-1932Phone: (360) 752-5280
- 4465 Cordata Pkwy Ste 102Bellingham, WA 98226-8037Phone: (360) 752-5280
- 8844 Benson RdLynden, WA 98264-9787Phone: (360) 318-0260
Registry dates
- Enumerated
- 2013-02-18
- Last updated
- 2025-11-20
- Certified
- 2025-11-20
Frequently asked questions
- What is Heather Ross Blackford's NPI number?
- Heather Ross Blackford's National Provider Identifier (NPI) is 1821338591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Ross Blackford's specialty?
- Heather Ross Blackford is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Heather Ross Blackford located?
- Heather Ross Blackford's practice location on file with NPPES is 1660 Delaware St, Longview, WA 98632-2310.
- What is Heather Ross Blackford's phone number?
- The practice phone number listed in the NPPES registry for Heather Ross Blackford is (360) 414-2800.
- Does Heather Ross Blackford accept Medicare?
- Heather Ross Blackford is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Ross Blackford's NPI active?
- Yes — Heather Ross Blackford's NPI (1821338591) is active in the NPPES registry as of the last update on 2025-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.