Shirley Koon, D.O.
NPI 1861716805 · Internal Medicine Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirley Koon, D.O. is a Internal Medicine Physician provider in Sacramento, CA (NPI 1861716805).
Provider details
- NPI number
- 1861716805
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
435 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 246 | $133 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 67 | $137 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $92 |
| Administration of Influenza Virus VaccineG0008 | 23 | $34 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $98 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 350 | 101 |
| Atorvastatin Calcium | 310 | 88 |
| Amlodipine Besylate | 293 | 77 |
| Levothyroxine Sodium | 286 | 77 |
| Lisinopril | 207 | 55 |
| Gabapentin | 180 | 55 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-19
- Last updated
- 2016-08-11
Frequently asked questions
- What is Shirley Koon's NPI number?
- Shirley Koon's National Provider Identifier (NPI) is 1861716805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirley Koon's specialty?
- Shirley Koon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shirley Koon located?
- Shirley Koon's practice location on file with NPPES is 1201 Alhambra Blvd, Sacramento, CA 95816-5238.
- What is Shirley Koon's phone number?
- The practice phone number listed in the NPPES registry for Shirley Koon is (916) 731-7925.
- Does Shirley Koon accept Medicare?
- Shirley Koon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirley Koon's NPI active?
- Yes — Shirley Koon's NPI (1861716805) is active in the NPPES registry as of the last update on 2016-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.