NPI registry status
Active
2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1851356398 MD
Verify on CMS → Augusto Bertiz, MD
Geriatric Medicine (Family Medicine) Physician in Bakersfield, 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 1,792 in Geriatric Medicine (Family 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
13K
Medicare Part D claims · 486 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Augusto Bertiz, MD filed 13,231 Medicare Part D claims in 2024 as a Geriatric Medicine (Family Medicine) Physician in Bakersfield, California, prescribing 88% generic.
- 13K
- Part D claims, 2024
- 88%
- generic prescribing
- ≥98th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Augusto Bertiz, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1851356398), first enumerated 04/18/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 13,231 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Augusto Bertiz, MD's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1851356398 · Geriatric Medicine (Family Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-HEAVY · BOOK-THIN · PHOTO-ENUM
- NPI-10 1851356398
- ENUM-LEGACY 2006
- TAX-NARROW 1,792
- RX-HEAVY 13K claims
- BOOK-THIN 250 in California
- PHOTO-ENUM Ningyi Huang · 2006
Augusto Bertiz, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
13,231 ≥ 98th percentile 98% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Augusto Bertiz, MD 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 Augusto Bertiz, MD?
Quality data not reportedPrimary specialty
Geriatric Medicine (Family Medicine) Physician
Medicare Part D claims
13,231 169% vs specialty avg
Specialty distribution in California
How Geriatric Medicine (Family 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 (Family 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).
Practice Address
Provider Details
| NPI | 1851356398 |
|---|---|
| Specialty | Geriatric Medicine (Family Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/18/2006 |
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 Augusto Bertiz, MD. To verify Augusto Bertiz, MD'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
Augusto Bertiz, MD - brand share 12.0%
Geriatric Medicine (Family Medicine) Physician average
12% brand-name claims vs 88% generic, on 13,231 2024 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 2024.
13,231
Total Claims
$513K
Total Drug Cost
486
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 17,847.866
- Total Day Supply
- 359,025
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $260K
- Generic Drug Cost
- $250K
- Opioid Claims
- 635 (4.8% rate)
- Antibiotic Claims
- 307
Patient Demographics
- Average Patient Age
- 78.1 years
- Avg HCC Risk Score
- 2.15
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 23, 65-74: 132, 75-84: 210, 85+: 121
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Augusto Bertiz, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
820 claims
- Levothyroxine Sodium
Levothyroxine Sodium
465 claims
- Furosemide
Furosemide
408 claims
- Gabapentin
Gabapentin
407 claims
- Lisinopril
Lisinopril
361 claims
- Pantoprazole Sodium
Pantoprazole Sodium
359 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
330 claims
- Glipizide 284
Glipizide
284 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 820 |
| Levothyroxine Sodium | 465 |
| Furosemide | 408 |
| Gabapentin | 407 |
| Lisinopril | 361 |
| Pantoprazole Sodium | 359 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 330 |
| Glipizide | 284 |
| Tamsulosin Hcl | 274 |
| Famotidine | 266 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Geriatric Medicine (Family Medicine) Physician in CA →
All providers in California →
Compare specialties →
Geriatric Medicine (Family Medicine) Physician Overview
How Augusto Bertiz, MD fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.
1,792
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,917
Avg Claims per Provider
Augusto Bertiz, MD's 13,231 claims are above the specialty average of 4,917.
Nationwide Geriatric Medicine (Family Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bertiz, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Geriatric Medicine (Family Medicine) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Bertiz.
One of 250 Geriatric Medicine (Family Medicine) Physician providers enrolled in California, 5 are shown here.
Dr. Nagina Abdiani
DO
Orange, CA
Dr. Shivali Agarwal
M.D.
Fresno, CA
Dr. Kent Ahn
MD
Fontana, CA
Dr. Theresa Allison
M.D.
San Francisco, CA
Nancy Alvarez
NP
Simi Valley, CA
Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Augusto Bertiz, MD's specialty? ▼
Augusto Bertiz, MD specializes in Geriatric Medicine (Family Medicine) Physician and practices in Bakersfield, California. Credentials: MD.
How much does Augusto Bertiz, MD prescribe under Medicare Part D? ▼
In 2024, Augusto Bertiz, MD wrote 13,231 Medicare Part D claims totaling $513K in drug costs for 486 beneficiaries.
Where is Augusto Bertiz, MD located? ▼
Augusto Bertiz, MD is located at 3551 Q ST, Bakersfield, CA, 93301. Phone: (661) 327-3747.
What is Augusto Bertiz, MD's NPI number? ▼
Augusto Bertiz, MD's National Provider Identifier (NPI) is 1851356398, issued on 04/18/2006.
Does Augusto Bertiz, MD prescribe more brand-name or generic drugs? ▼
Augusto Bertiz, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $260K in brand drug costs.
Does Augusto Bertiz, MD prescribe opioids? ▼
Yes, Augusto Bertiz, MD had 635 opioid claims in 2024 with an opioid prescribing rate of 4.8%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 1,792 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,917 Medicare Part D claims per year.
What drugs does Augusto Bertiz, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Augusto Bertiz, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Augusto Bertiz, MD accept Medicare? ▼
Augusto Bertiz, MD appears in CMS Medicare data with 13,231 Part D claims and 486 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Augusto Bertiz, MD's credentials? ▼
Augusto Bertiz, MD's NPI is 1851356398 with credentials MD. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.