Shelly Riddell, PA
NPI 1861687675 · Physician Assistant · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shelly Riddell, PA is a Physician Assistant provider in Ann Arbor, MI (NPI 1861687675).
Provider details
- NPI number
- 1861687675
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 5601004186 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 113 | 39 |
| Valganciclovir Hcl | 55 | 32 |
| Oxycodone Hcl | 40 | 37 |
| Famotidine | 28 | 19 |
| Omeprazole | 21 | — |
| Methocarbamol | 17 | 17 |
| Atorvastatin Calcium | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (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
- 2007-09-14
- Last updated
- 2008-03-27
Frequently asked questions
- What is Shelly Riddell's NPI number?
- Shelly Riddell's National Provider Identifier (NPI) is 1861687675, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shelly Riddell's specialty?
- Shelly Riddell is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Shelly Riddell located?
- Shelly Riddell's practice location on file with NPPES is 1500 East Medical Center Dr, Ann Arbor, MI 48109-0332.
- What is Shelly Riddell's phone number?
- The practice phone number listed in the NPPES registry for Shelly Riddell is (734) 936-5738.
- Does Shelly Riddell accept Medicare?
- Shelly Riddell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shelly Riddell's NPI active?
- Yes — Shelly Riddell's NPI (1861687675) is active in the NPPES registry as of the last update on 2008-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.