Shelly Nickels, MD
NPI 1891088159 · Internal Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shelly Nickels, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1891088159).
Provider details
- NPI number
- 1891088159
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
992 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 385 | $113 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 355 | $75 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 165 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 42 | $162 |
| Critical Care, First 30-74 Minutes99291 | 24 | $203 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 21 | $77 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 21 | 19 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 19 | 18 |
| Furosemide | 19 | 19 |
| Apixabanbrand: Eliquis | 17 | 14 |
| Metoprolol Succinate | 15 | 14 |
| Amlodipine Besylate | 13 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$154 across 3 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
Registry dates
- Enumerated
- 2011-05-19
- Last updated
- 2023-12-29
- Certified
- 2023-12-29
Frequently asked questions
- What is Shelly Nickels's NPI number?
- Shelly Nickels's National Provider Identifier (NPI) is 1891088159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shelly Nickels's specialty?
- Shelly Nickels is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shelly Nickels located?
- Shelly Nickels's practice location on file with NPPES is 18414 US Highway 281 N Ste 104, San Antonio, TX 78259-7611.
- What is Shelly Nickels's phone number?
- The practice phone number listed in the NPPES registry for Shelly Nickels is (210) 495-0224.
- Does Shelly Nickels accept Medicare?
- Shelly Nickels is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shelly Nickels's NPI active?
- Yes — Shelly Nickels's NPI (1891088159) is active in the NPPES registry as of the last update on 2023-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.