Douglas Langrock, MD
NPI 1306890199 · Family Medicine Physician · Oak Harbor, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Langrock, MD is a Family Medicine Physician provider in Oak Harbor, WA (NPI 1306890199).
Provider details
- NPI number
- 1306890199
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00027100 (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
20 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 44 | 41 |
| Methylprednisolone | 32 | 32 |
| Azithromycin | 30 | 30 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 22 | 20 |
| Cephalexin | 21 | 21 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 18 | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-19
- Last updated
- 2013-06-25
Frequently asked questions
- What is Douglas Langrock's NPI number?
- Douglas Langrock's National Provider Identifier (NPI) is 1306890199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Langrock's specialty?
- Douglas Langrock is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Langrock located?
- Douglas Langrock's practice location on file with NPPES is 275 Se Cabot Drive, Oak Harbor, WA 98277.
- What is Douglas Langrock's phone number?
- The practice phone number listed in the NPPES registry for Douglas Langrock is (360) 675-6648.
- Does Douglas Langrock accept Medicare?
- Douglas Langrock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Langrock's NPI active?
- Yes — Douglas Langrock's NPI (1306890199) is active in the NPPES registry as of the last update on 2013-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.