NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1033434071 MD
Verify on CMS → Cainan Foltz, MD
Gastroenterology Physician in San Diego, 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 16,601 in Gastroenterology 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
720
Medicare Part D claims · 238 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$1.5K
64 payments · CMS Open Payments (Sunshine Act)
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
Cainan Foltz, MD reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 720 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 720
- Part D claims, 2023
- 70%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Cainan Foltz, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Cainan Foltz, MD sits
This provider among gastroenterology physician peers
Across the 5,957 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Cainan Foltz, MD writes more Part D claims than 46% of them and scores higher on MIPS quality than 12% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one gastroenterology physician peer from a representative sample of 60; the gold marker is Cainan Foltz, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Cainan Foltz, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Cainan Foltz, MD?
Below national averagePrimary specialty
Gastroenterology Physician
Medicare Part D claims
720 14% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in California
How Gastroenterology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Cainan Foltz, MD's 2023 MIPS final score plotted against the Gastroenterology Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Gastroenterology Physician) - 75/100 vs national avg 83.1
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).
Cainan Foltz, MD appears in the CMS NPPES registry as a Gastroenterology Physician provider holding MD credentials at 8008 FROST ST STE 200, San Diego, CA, 92123, with a listed phone of (858) 292-7527. NPI 1033434071 was issued on 04/01/2010.
Medicare Part D records for calendar year 2023 show 720 prescription claims written by this provider, covering 238 Medicare beneficiaries and totaling roughly $351K in drug spend, split 30% brand-name and 70% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,601 enrolled providers across 54 states and an average of 833 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 | 1033434071 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/01/2010 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Individual
Hospital and facility affiliations
Facilities where Cainan Foltz, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
San Diego Digestive Disease Consultants Inc A Medical Group
San Diego, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Cainan Foltz, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Cainan Foltz, MD. To verify Cainan Foltz, 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 · Above average
Cainan Foltz, MD - brand share 30.0%
Gastroenterology Physician average
30% brand-name claims vs 70% generic, on 720 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.
720
Total Claims
$351K
Total Drug Cost
238
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,039
- Total Day Supply
- 25,352
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $309K
- Generic Drug Cost
- $43K
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 0.96
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 11, 65-74: 143, 75-84: 73, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Cainan Foltz, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
144 claims
- Omeprazole
Omeprazole
97 claims
- Creon 35
Creon
35 claims
- Ondansetron Hcl 25
Ondansetron Hcl
25 claims
- Linzess 24
Linzess
24 claims
- Mesalamine 22
Mesalamine
22 claims
- Sutab 16
Sutab
16 claims
- Lansoprazole 14
Lansoprazole
14 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 144 |
| Omeprazole | 97 |
| Creon Lipase/Protease/Amylase | 35 |
| Ondansetron Hcl | 25 |
| Linzess Linaclotide | 24 |
| Mesalamine | 22 |
| Sutab Sod Sulf/Pot Chloride/Mag Sulf | 16 |
| Lansoprazole | 14 |
| Azathioprine | 13 |
| Humira(Cf) Pen Adalimumab | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Cainan Foltz, MD fits within the Gastroenterology Physician landscape nationally.
16,601
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Cainan Foltz, MD's 720 claims are below the specialty average of 833.
Nearby Gastroenterology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Foltz.
Dr. David Aarons
MD
Lodi, CA
Dr. Constante Abaya
MD
Oxnard, CA
Dr. Homan Abdollahzadeh
MD
Palm Springs, CA
Dr. John Abdulian
M.D.
Fresno, CA
Dr. Hussein Abidali
DO
Rancho Cucamonga, CA
Compare Gastroenterology Physician nationally: see state-by-state distribution →
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 Gastroenterology 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.
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Frequently Asked Questions
What is Cainan Foltz, MD's specialty? ▼
Cainan Foltz, MD specializes in Gastroenterology Physician and practices in San Diego, California. Credentials: MD.
How much does Cainan Foltz, MD prescribe under Medicare Part D? ▼
In 2023, Cainan Foltz, MD wrote 720 Medicare Part D claims totaling $351K in drug costs for 238 beneficiaries.
What is Cainan Foltz, MD's Medicare quality score? ▼
Cainan Foltz, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Cainan Foltz, MD located? ▼
Cainan Foltz, MD is located at 8008 FROST ST STE 200, San Diego, CA, 92123. Phone: (858) 292-7527.
What is Cainan Foltz, MD's NPI number? ▼
Cainan Foltz, MD's National Provider Identifier (NPI) is 1033434071, issued on 04/01/2010.
Does Cainan Foltz, MD prescribe more brand-name or generic drugs? ▼
Cainan Foltz, MD's prescribing is 30% brand-name and 70% generic drugs by claim count, with $309K in brand drug costs.
How many Gastroenterology Physician providers are there in the US? ▼
There are 16,601 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Cainan Foltz, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Cainan Foltz, MD's most frequently prescribed drugs include Pantoprazole Sodium, Omeprazole, Creon. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cainan Foltz, MD accept Medicare? ▼
Cainan Foltz, MD appears in CMS Medicare data with 720 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cainan Foltz, MD's credentials? ▼
Cainan Foltz, MD's NPI is 1033434071 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 (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.