Tiffany King, D.O.
NPI 1023386174 · Internal Medicine Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiffany King, D.O. is a Internal Medicine Physician provider in Walnut Creek, CA (NPI 1023386174).
Provider details
- NPI number
- 1023386174
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A11898 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
1,634 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 | 758 | $88 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 380 | $87 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 135 | $130 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 120 | $124 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 76 | $145 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More |
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 |
|---|---|---|
| Gabapentin | 50 | 18 |
| Apixabanbrand: Eliquis | 40 | 20 |
| Rivaroxabanbrand: Xarelto | 33 | — |
| Prednisone | 32 | — |
| Furosemide | 27 | 15 |
| Tamsulosin Hcl | 24 | — |
| Lansoprazole | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-12-05
- Last updated
- 2015-02-25
Frequently asked questions
- What is Tiffany King's NPI number?
- Tiffany King's National Provider Identifier (NPI) is 1023386174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany King's specialty?
- Tiffany King is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tiffany King located?
- Tiffany King's practice location on file with NPPES is 1220 Rossmoor Pkwy, Walnut Creek, CA 94595-2501.
- What is Tiffany King's phone number?
- The practice phone number listed in the NPPES registry for Tiffany King is (925) 947-3393.
- Does Tiffany King accept Medicare?
- Tiffany King is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiffany King's NPI active?
- Yes — Tiffany King's NPI (1023386174) is active in the NPPES registry as of the last update on 2015-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.