Reiko Johnson, MD
NPI 1811095094 · Family Medicine Physician · Somersworth, NH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Reiko Johnson, MD is a Family Medicine Physician provider in Somersworth, NH (NPI 1811095094).
Provider details
- NPI number
- 1811095094
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00045624 (WA)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
63 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $91 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19), Influenza Virus Types a and B, and Respiratory Syncytial Virus87637 | 15 | $140 |
Typical Medicare-allowed amounts for these services range $91–$140 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 47 | 21 |
| Lisinopril | 42 | 21 |
| Gabapentin | 27 | 12 |
| Losartan Potassium | 27 | 11 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 26 | 14 |
| Metoprolol Succinate | 22 | — |
| Prednisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$89 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 8 Greenleaf Woods DrPortsmouth, NH 03801-5436Phone: (603) 422-8208Fax: (603) 422-8218
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2022-05-17
- Certified
- 2022-05-17
Frequently asked questions
- What is Reiko Johnson's NPI number?
- Reiko Johnson's National Provider Identifier (NPI) is 1811095094, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Reiko Johnson's specialty?
- Reiko Johnson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Reiko Johnson located?
- Reiko Johnson's practice location on file with NPPES is 311 Route 108, Somersworth, NH 03878-1522.
- What is Reiko Johnson's phone number?
- The practice phone number listed in the NPPES registry for Reiko Johnson is (603) 749-2346.
- Does Reiko Johnson accept Medicare?
- Reiko Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Reiko Johnson's NPI active?
- Yes — Reiko Johnson's NPI (1811095094) is active in the NPPES registry as of the last update on 2022-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.