John Riley, MD MPH
NPI 1841394830 · Internal Medicine Physician · Fishers, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Riley, MD MPH is a Internal Medicine Physician provider in Fishers, IN (NPI 1841394830).
Provider details
- NPI number
- 1841394830
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 01042451A (IN)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
39 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 23 | $119 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 16 | $45 |
Typical Medicare-allowed amounts for these services range $45–$119 (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 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Divalproex Sodium | 73 | — |
| Trazodone Hcl | 72 | 11 |
| Atorvastatin Calcium | 67 | — |
| Acyclovir | 53 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 51 | — |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 40 | — |
| Lisinopril | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$145 across 9 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
- 2006-09-11
- Last updated
- 2021-06-22
- Certified
- 2021-06-22
Frequently asked questions
- What is John Riley's NPI number?
- John Riley's National Provider Identifier (NPI) is 1841394830, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Riley's specialty?
- John Riley is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Riley located?
- John Riley's practice location on file with NPPES is 9894 E 121st St, Fishers, IN 46037.
- What is John Riley's phone number?
- The practice phone number listed in the NPPES registry for John Riley is (317) 621-6060.
- Does John Riley accept Medicare?
- John Riley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Riley's NPI active?
- Yes — John Riley's NPI (1841394830) is active in the NPPES registry as of the last update on 2021-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.