Ritchie Wong, M.D.
NPI 1821054552 · Family Medicine Physician · Carmichael, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ritchie Wong, M.D. is a Family Medicine Physician provider in Carmichael, CA (NPI 1821054552).
Provider details
- NPI number
- 1821054552
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G34923 (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
20 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
2,202 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 788 | $136 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 323 | $9 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 222 | $26 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 175 | $17 |
| Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000 | 154 | $4 |
| 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 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 304 | 76 |
| Lisinopril | 238 | 61 |
| Hydrochlorothiazide | 237 | 67 |
| Amlodipine Besylate | 236 | 63 |
| Atorvastatin Calcium | 194 | 54 |
| Levothyroxine Sodium | 171 | 46 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$311 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
- 2006-04-21
- Last updated
- 2012-11-26
Frequently asked questions
- What is Ritchie Wong's NPI number?
- Ritchie Wong's National Provider Identifier (NPI) is 1821054552, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ritchie Wong's specialty?
- Ritchie Wong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ritchie Wong located?
- Ritchie Wong's practice location on file with NPPES is 3650 Mission Ave, Carmichael, CA 95608-2933.
- What is Ritchie Wong's phone number?
- The practice phone number listed in the NPPES registry for Ritchie Wong is (916) 972-0882.
- Does Ritchie Wong accept Medicare?
- Ritchie Wong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ritchie Wong's NPI active?
- Yes — Ritchie Wong's NPI (1821054552) is active in the NPPES registry as of the last update on 2012-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.