Diego Ferro, M.D.
NPI 1700027877 · Specialist · Stockton, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diego Ferro, M.D. is a Specialist provider in Stockton, CA (NPI 1700027877).
Provider details
- NPI number
- 1700027877
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A106012 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
1,613 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 | 517 | $131 |
| 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 | 327 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 174 | $135 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 152 | $20 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $91 |
| 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 · 179 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 796 | 270 |
| Levothyroxine Sodium | 476 | 138 |
| Losartan Potassium | 437 | 157 |
| Metformin Hcl | 433 | 147 |
| Amlodipine Besylate | 400 | 143 |
| Gabapentin | 347 | 96 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$255 across 8 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
- 2009-03-18
- Last updated
- 2020-02-13
- Certified
- 2020-02-13
Frequently asked questions
- What is Diego Ferro's NPI number?
- Diego Ferro's National Provider Identifier (NPI) is 1700027877, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diego Ferro's specialty?
- Diego Ferro is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Diego Ferro located?
- Diego Ferro's practice location on file with NPPES is 420 W Acacia St, Stockton, CA 95203-2441.
- What is Diego Ferro's phone number?
- The practice phone number listed in the NPPES registry for Diego Ferro is (209) 948-1583.
- Does Diego Ferro accept Medicare?
- Diego Ferro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diego Ferro's NPI active?
- Yes — Diego Ferro's NPI (1700027877) is active in the NPPES registry as of the last update on 2020-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.