NPI registry status
Active
2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1356342638 M.D.
Verify on CMS → Ingrid Fernandes, M.D.
Geriatric Medicine (Internal Medicine) Physician in Concord, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,171 in Geriatric Medicine (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 222 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
79%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ingrid Fernandes, M.D. filed 2,448 Medicare Part D claims in 2023 as a Geriatric Medicine (Internal Medicine) Physician in Concord, California, prescribing 79% generic.
- 2K
- Part D claims, 2023
- 79%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Ingrid Fernandes, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,448 Top 14% higher than 86% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Ingrid Fernandes, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Ingrid Fernandes, M.D.?
Quality data not reportedPrimary specialty
Geriatric Medicine (Internal Medicine) Physician
Medicare Part D claims
2,448 45% vs specialty avg
Specialty distribution in California
How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Geriatric Medicine (Internal Medicine) Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Ingrid Fernandes, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 3052 WILLOW PASS RD, Concord, CA, 94519, with a listed phone of (925) 681-4100. NPI 1356342638 was issued on 08/09/2005.
Medicare Part D records for calendar year 2023 show 2,448 prescription claims written by this provider, covering 222 Medicare beneficiaries and totaling roughly $503K in drug spend, split 20% brand-name and 79% generic by claim count, with an opioid prescribing rate of 2.4%.
Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,171 enrolled providers across 52 states and an average of 4,450 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1356342638 |
|---|---|
| Specialty | Geriatric Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 08/09/2005 |
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Ingrid Fernandes, M.D.. To verify Ingrid Fernandes, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Ingrid Fernandes, M.D. - brand share 20.0%
Geriatric Medicine (Internal Medicine) Physician average
20% brand-name claims vs 79% generic, on 2,448 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,448
Total Claims
$503K
Total Drug Cost
222
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,786
- Total Day Supply
- 140,157
- Brand vs Generic
- 20% brand / 79% generic
- Brand Drug Cost
- $428K
- Generic Drug Cost
- $73K
- Opioid Claims
- 58 (2.4% rate)
- Antibiotic Claims
- 33
Patient Demographics
- Average Patient Age
- 68.5 years
- Avg HCC Risk Score
- 1.33
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 53, 65-74: 121, 75-84: 34, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ingrid Fernandes, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
221 claims
- Metformin Hcl
Metformin Hcl
104 claims
- Losartan Potassium
Losartan Potassium
100 claims
- Amlodipine Besylate 82
Amlodipine Besylate
82 claims
- Gabapentin 80
Gabapentin
80 claims
- Levothyroxine Sodium 77
Levothyroxine Sodium
77 claims
- Metoprolol Succinate 68
Metoprolol Succinate
68 claims
- Lisinopril 53
Lisinopril
53 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 221 |
| Metformin Hcl | 104 |
| Losartan Potassium | 100 |
| Amlodipine Besylate | 82 |
| Gabapentin | 80 |
| Levothyroxine Sodium | 77 |
| Metoprolol Succinate | 68 |
| Lisinopril | 53 |
| Diclofenac Sodium | 52 |
| Fluticasone Propionate | 50 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Internal Medicine) Physician in CA →
All providers in California →
Compare specialties →
Geriatric Medicine (Internal Medicine) Physician Overview
How Ingrid Fernandes, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.
4,171
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider
Ingrid Fernandes, M.D.'s 2,448 claims are below the specialty average of 4,450.
Nearby Geriatric Medicine (Internal Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Fernandes.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Geriatric Medicine (Internal Medicine) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore California
Frequently Asked Questions
What is Ingrid Fernandes, M.D.'s specialty? ▼
Ingrid Fernandes, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in Concord, California. Credentials: M.D..
How much does Ingrid Fernandes, M.D. prescribe under Medicare Part D? ▼
In 2023, Ingrid Fernandes, M.D. wrote 2,448 Medicare Part D claims totaling $503K in drug costs for 222 beneficiaries.
Where is Ingrid Fernandes, M.D. located? ▼
Ingrid Fernandes, M.D. is located at 3052 WILLOW PASS RD, Concord, CA, 94519. Phone: (925) 681-4100.
What is Ingrid Fernandes, M.D.'s NPI number? ▼
Ingrid Fernandes, M.D.'s National Provider Identifier (NPI) is 1356342638, issued on 08/09/2005.
Does Ingrid Fernandes, M.D. prescribe more brand-name or generic drugs? ▼
Ingrid Fernandes, M.D.'s prescribing is 20% brand-name and 79% generic drugs by claim count, with $428K in brand drug costs.
Does Ingrid Fernandes, M.D. prescribe opioids? ▼
Yes, Ingrid Fernandes, M.D. had 58 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,171 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does Ingrid Fernandes, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ingrid Fernandes, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ingrid Fernandes, M.D. accept Medicare? ▼
Ingrid Fernandes, M.D. appears in CMS Medicare data with 2,448 Part D claims and 222 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ingrid Fernandes, M.D.'s credentials? ▼
Ingrid Fernandes, M.D.'s NPI is 1356342638 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.