Sharon Riddler, MD
NPI 1558338889 · Specialist · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sharon Riddler, MD is a Specialist provider in Pittsburgh, PA (NPI 1558338889).
Provider details
- NPI number
- 1558338889
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Female
- License
- MD043833L (PA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
59 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 32 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $92 |
Typical Medicare-allowed amounts for these services range $16–$92 (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 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 283 | 30 |
| Atorvastatin Calcium | 205 | 41 |
| Lisinopril | 145 | 26 |
| Gabapentin | 104 | 19 |
| Dolutegravir Sodiumbrand: Tivicay | 103 | 12 |
| Rosuvastatin Calcium | 99 | 21 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sharon Riddler's NPI number?
- Sharon Riddler's National Provider Identifier (NPI) is 1558338889, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharon Riddler's specialty?
- Sharon Riddler is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Sharon Riddler located?
- Sharon Riddler's practice location on file with NPPES is 3601 5th Ave, Pittsburgh, PA 15213-3403.
- What is Sharon Riddler's phone number?
- The practice phone number listed in the NPPES registry for Sharon Riddler is (412) 647-7228.
- Does Sharon Riddler accept Medicare?
- Sharon Riddler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sharon Riddler's NPI active?
- Yes — Sharon Riddler's NPI (1558338889) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.