Karen Fong, MD
NPI 1548275068 · Otolaryngology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Fong, MD is a Otolaryngology Physician provider in Walnut Creek, CA (NPI 1548275068).
Provider details
- NPI number
- 1548275068
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A52969 (CA)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
782 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) |
|---|---|---|
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 328 | $251 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 290 | $158 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 100 | $202 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $113 |
| Biopsy Or Removal of Nasal Polyp Or Tissue Using an Endoscope31237 | 17 | $416 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 14 |
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 |
|---|---|---|
| Ipratropium Bromide | 75 | 35 |
| Azelastine Hcl | 50 | 14 |
| Fluticasone Propionate | 38 | 18 |
| Prednisolone Acetate | 30 | 23 |
| Mupirocin | 21 | — |
| Montelukast Sodium | 19 | — |
| Prednisone | 18 | 16 |
| Amoxicillin/Potassium Clav |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$326 across 12 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
Additional practice locations (1)
- 5924 Stoneridge Dr Ste 108Pleasanton, CA 94588-5400Phone: (925) 300-4680Fax: (925) 906-9780
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2025-05-01
- Certified
- 2025-05-01
Frequently asked questions
- What is Karen Fong's NPI number?
- Karen Fong's National Provider Identifier (NPI) is 1548275068, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Fong's specialty?
- Karen Fong is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Fong located?
- Karen Fong's practice location on file with NPPES is 2637 Shadelands Dr, Walnut Creek, CA 94598-2512.
- What is Karen Fong's phone number?
- The practice phone number listed in the NPPES registry for Karen Fong is (925) 300-4680.
- Does Karen Fong accept Medicare?
- Karen Fong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Fong's NPI active?
- Yes — Karen Fong's NPI (1548275068) is active in the NPPES registry as of the last update on 2025-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.