NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1619933157 MD
Verify on CMS → David Keller, MD
Infectious Disease Physician in Monterey, 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 8,314 in Infectious Disease 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
4K
Medicare Part D claims · 283 beneficiaries · Infectious Disease Physician avg: 816
MIPS score
77.8/100
▼ 6 pts below national avg 83.5 · Above neutral
Industry payments
$485.23
8 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
David Keller, MD reported a CMS MIPS final score of 77.8/100 - below the 83.5 national average - and filed 3,943 Medicare Part D claims in 2023.
- 77.8/100
- MIPS score · -6 vs avg
- 4K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥20th
- pct among measured MIPS (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.
David Keller, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
78 ≥ 20th percentile 20% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where David Keller, MD sits
This provider among infectious disease physician peers
Across the 2,130 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Keller, MD writes more Part D claims than 97% of them and scores higher on MIPS quality than 25% - placing this provider in the high-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 infectious disease physician peer from a representative sample of 60; the gold marker is David Keller, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Keller, 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 David Keller, MD?
Below national averagePrimary specialty
Infectious Disease Physician
Medicare Part D claims
3,943 383% vs specialty avg
MIPS final score
77.8/100 5.7 pts vs avg
Specialty distribution in California
How Infectious Disease Physician compares to other specialties among California providers
Medicare quality performance, MIPS
David Keller, MD's 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 77.8/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 77.8/100 vs national avg 83.5
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).
David Keller, MD appears in the CMS NPPES registry as an Infectious Disease Physician provider holding MD credentials at 2 UPPER RAGSDALE DR BLDG A, Monterey, CA, 93940, with a listed phone of (831) 333-3040. NPI 1619933157 was issued on 04/24/2006.
Medicare Part D records for calendar year 2023 show 3,943 prescription claims written by this provider, covering 283 Medicare beneficiaries and totaling roughly $3.3 million in drug spend, with an opioid prescribing rate of 4.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.8/100 for the 2023 performance year (Quality 69, Cost 57), compared with the 83.5 average among clinicians with a measured score.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,314 enrolled providers across 54 states and an average of 816 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 | 1619933157 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/24/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.8126
Final Score
Measured-score avg: 83.5
68.9951
Quality
57.0468
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where David Keller, 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.
Montage Medical Group
Monterey, 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 David Keller, MD. Source: openpaymentsdata.cms.gov.
Total received
$485
Largest payer
Kerecis Limited
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 David Keller, MD. To verify David Keller, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,943
Total Claims
$3.3M
Total Drug Cost
283
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,004
- Total Day Supply
- 137,960
- Generic Drug Cost
- $198K
- Opioid Claims
- 176 (4.5% rate)
- Antibiotic Claims
- 427
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 1.81
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 29, 65-74: 112, 75-84: 89, 85+: 53
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Keller, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Genvoya
Genvoya
221 claims
- Biktarvy
Biktarvy
164 claims
- Methenamine Hippur…
Methenamine Hippurate
163 claims
- Atorvastatin Calcium
Atorvastatin Calcium
108 claims
- Lorazepam
Lorazepam
90 claims
- Amlodipine Besylate
Amlodipine Besylate
89 claims
- Prezista 85
Prezista
85 claims
- Hydrocodone-Acetam… 83
Hydrocodone-Acetaminophen
83 claims
| Drug | Claims |
|---|---|
| Genvoya Elviteg/Cob/Emtri/Tenof Alafen | 221 |
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 164 |
| Methenamine Hippurate | 163 |
| Atorvastatin Calcium | 108 |
| Lorazepam | 90 |
| Amlodipine Besylate | 89 |
| Prezista Darunavir | 85 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 83 |
| Gabapentin | 81 |
| Zolpidem Tartrate | 75 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How David Keller, MD fits within the Infectious Disease Physician landscape nationally.
8,314
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
David Keller, MD's 3,943 claims are above the specialty average of 816.
Nearby Infectious Disease Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Keller.
Dr. Sanaz Abderrahmane
M.D.
Sacramento, CA
Dr. Glen Abergel
M.D.
Oxnard, CA
Dr. Igor Abolnik
MD
Rureka, CA
Dr. Nehkonti Adams
M.D.
San Diego, CA
Dr. Alina Adeel
M.D
La Jolla, CA
Compare Infectious Disease 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 Infectious Disease 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 David Keller, MD's specialty? ▼
David Keller, MD specializes in Infectious Disease Physician and practices in Monterey, California. Credentials: MD.
How much does David Keller, MD prescribe under Medicare Part D? ▼
In 2023, David Keller, MD wrote 3,943 Medicare Part D claims totaling $3.3M in drug costs for 283 beneficiaries.
What is David Keller, MD's Medicare quality score? ▼
David Keller, MD has a CMS MIPS Final Score of 77.8/100 (Quality: 69, Cost: 57). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Keller, MD located? ▼
David Keller, MD is located at 2 UPPER RAGSDALE DR BLDG A, Monterey, CA, 93940. Phone: (831) 333-3040.
What is David Keller, MD's NPI number? ▼
David Keller, MD's National Provider Identifier (NPI) is 1619933157, issued on 04/24/2006.
Does David Keller, MD prescribe opioids? ▼
Yes, David Keller, MD had 176 opioid claims in 2023 with an opioid prescribing rate of 4.5%.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,314 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does David Keller, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Keller, MD's most frequently prescribed drugs include Genvoya, Biktarvy, Methenamine Hippurate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Keller, MD accept Medicare? ▼
David Keller, MD appears in CMS Medicare data with 3,943 Part D claims and 283 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Keller, MD's credentials? ▼
David Keller, MD's NPI is 1619933157 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
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.