Barbara Johnston, MD
NPI 1003908344 · Internal Medicine Physician · Colorado Springs, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Johnston, MD is a Internal Medicine Physician provider in Colorado Springs, CO (NPI 1003908344).
Provider details
- NPI number
- 1003908344
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 160523 (NY)
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 tenure38% of score
19 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 22 | 14 |
| Levothyroxine Sodium | 22 | 16 |
| Omeprazole | 17 | 12 |
| Atorvastatin Calcium | 13 | — |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 13 | 13 |
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 , 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
- 2006-09-28
- Last updated
- 2022-08-23
- Certified
- 2022-08-23
Frequently asked questions
- What is Barbara Johnston's NPI number?
- Barbara Johnston's National Provider Identifier (NPI) is 1003908344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Johnston's specialty?
- Barbara Johnston is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Johnston located?
- Barbara Johnston's practice location on file with NPPES is 175 S Union Blvd Ste 350, Colorado Springs, CO 80910-3146.
- What is Barbara Johnston's phone number?
- The practice phone number listed in the NPPES registry for Barbara Johnston is (719) 633-5515.
- Does Barbara Johnston accept Medicare?
- Barbara Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Johnston's NPI active?
- Yes — Barbara Johnston's NPI (1003908344) is active in the NPPES registry as of the last update on 2022-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.