Jaya Parker, MD
NPI 1013003664 · Internal Medicine Physician · Washington, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jaya Parker, MD is a Internal Medicine Physician provider in Washington, MO (NPI 1013003664).
Provider details
- NPI number
- 1013003664
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2001014711 (MO)
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 tenure28% of score
19 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
451 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 292 | $73 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 113 | $106 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 27 | $121 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 19 | $110 |
Typical Medicare-allowed amounts for these services range $73–$121 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 51 | 50 |
| Furosemide | 41 | 26 |
| Prednisone | 35 | 33 |
| Atorvastatin Calcium | 31 | 16 |
| Metoprolol Succinate | 26 | 14 |
| Doxycycline Hyclate | 26 | 24 |
| Azithromycin | 23 | 22 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2022-07-19
- Certified
- 2022-07-19
Frequently asked questions
- What is Jaya Parker's NPI number?
- Jaya Parker's National Provider Identifier (NPI) is 1013003664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jaya Parker's specialty?
- Jaya Parker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jaya Parker located?
- Jaya Parker's practice location on file with NPPES is 901 E 5th St, Washington, MO 63090-3127.
- What is Jaya Parker's phone number?
- The practice phone number listed in the NPPES registry for Jaya Parker is (636) 239-8231.
- Does Jaya Parker accept Medicare?
- Jaya Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jaya Parker's NPI active?
- Yes — Jaya Parker's NPI (1013003664) is active in the NPPES registry as of the last update on 2022-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.