Cynthia Ro, M.D.
NPI 1598946790 · Endocrinology, Diabetes & Metabolism Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Ro, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Roseville, CA (NPI 1598946790).
Provider details
- NPI number
- 1598946790
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A100348 (CA)
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 tenure25% of score
18 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
990 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 | 583 | $138 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 215 | $3 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 116 | $36 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 57 | $16 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 19 | $179 |
Typical Medicare-allowed amounts for these services range $3–$179 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 501 | 128 |
| Semaglutidebrand: Ozempic | 258 | 54 |
| Metformin Hclbrand: Metformin Hcl Er | 223 | 76 |
| Glipizidebrand: Glipizide Er | 193 | 62 |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle | 180 | 62 |
| Levothyroxine Sodiumbrand: Synthroid | 171 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,250 across 66 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
- 2007-11-16
- Last updated
- 2014-11-12
Frequently asked questions
- What is Cynthia Ro's NPI number?
- Cynthia Ro's National Provider Identifier (NPI) is 1598946790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Ro's specialty?
- Cynthia Ro is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Ro located?
- Cynthia Ro's practice location on file with NPPES is 1 Medical Plaza Dr, Roseville, CA 95661-3037.
- What is Cynthia Ro's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Ro is (916) 781-1927.
- Does Cynthia Ro accept Medicare?
- Cynthia Ro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Ro's NPI active?
- Yes — Cynthia Ro's NPI (1598946790) is active in the NPPES registry as of the last update on 2014-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.