NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1932218963 MD
Verify on CMS → Gregory Czer, MD
Pulmonary Disease Physician in Chula Vista, 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 9,323 in Pulmonary 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
1K
Medicare Part D claims · 202 beneficiaries · Pulmonary Disease Physician avg: 1K
Industry payments
$21.34
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Gregory Czer, MD filed 1,288 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Chula Vista, California.
- 1K
- Part D claims, 2023
- $21.34
- industry payments (Sunshine Act)
- ≥78th
- 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.
Gregory Czer, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,288 ≥ 78th percentile 78% of 1,370,886 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 · 2023
◑
Board-eligible specialty (heuristic, not verified)
Gregory Czer, 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 Gregory Czer, MD?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
1,288 12% vs specialty avg
Specialty distribution in California
How Pulmonary Disease 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 Pulmonary Disease 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).
Gregory Czer, MD appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding MD credentials at 754 MEDICAL CENTER CT, Chula Vista, CA, 91911, with a listed phone of (619) 421-4000. NPI 1932218963 was issued on 08/30/2006.
Medicare Part D records for calendar year 2023 show 1,288 prescription claims written by this provider, covering 202 Medicare beneficiaries and totaling roughly $102K in drug spend.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,323 enrolled providers across 53 states and an average of 1,457 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 | 1932218963 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/30/2006 |
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 Gregory Czer, MD. Source: openpaymentsdata.cms.gov.
Total received
$21
Largest payer
Nevro Corp.
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 Gregory Czer, MD. To verify Gregory Czer, 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.
1,288
Total Claims
$102K
Total Drug Cost
202
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,500
- Total Day Supply
- 104,555
- Generic Drug Cost
- $29K
Patient Demographics
- Average Patient Age
- 78.1 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 44% female / 56% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gregory Czer, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
126 claims
- Simvastatin
Simvastatin
74 claims
- Metformin Hcl
Metformin Hcl
68 claims
- Lisinopril
Lisinopril
64 claims
- Levothyroxine Sodium
Levothyroxine Sodium
63 claims
- Losartan Potassium 47
Losartan Potassium
47 claims
- Amlodipine Besylate 39
Amlodipine Besylate
39 claims
- Omeprazole 34
Omeprazole
34 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 126 |
| Simvastatin | 74 |
| Metformin Hcl | 68 |
| Lisinopril | 64 |
| Levothyroxine Sodium | 63 |
| Losartan Potassium | 47 |
| Amlodipine Besylate | 39 |
| Omeprazole | 34 |
| Metoprolol Succinate | 32 |
| Metoprolol Tartrate | 29 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Gregory Czer, MD fits within the Pulmonary Disease Physician landscape nationally.
9,323
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Gregory Czer, MD's 1,288 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Czer.
Dr. Manoochehr Abadian Sharifabad
M.D.
Fountain Valley, CA
Dr. Mohamad Abdelfattah
MD
Fullerton, CA
Dr. Zainab Abdulsada
MBCHB
Sacramento, CA
Dr. Ayham Aboeed
M.D.
Bakersfield, CA
Dr. Babak Abrishami
D.O.
Los Angeles, CA
Compare Pulmonary 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 Pulmonary 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.
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 Gregory Czer, MD's specialty? ▼
Gregory Czer, MD specializes in Pulmonary Disease Physician and practices in Chula Vista, California. Credentials: MD.
How much does Gregory Czer, MD prescribe under Medicare Part D? ▼
In 2023, Gregory Czer, MD wrote 1,288 Medicare Part D claims totaling $102K in drug costs for 202 beneficiaries.
Where is Gregory Czer, MD located? ▼
Gregory Czer, MD is located at 754 MEDICAL CENTER CT, Chula Vista, CA, 91911. Phone: (619) 421-4000.
What is Gregory Czer, MD's NPI number? ▼
Gregory Czer, MD's National Provider Identifier (NPI) is 1932218963, issued on 08/30/2006.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,323 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Gregory Czer, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Gregory Czer, MD's most frequently prescribed drugs include Atorvastatin Calcium, Simvastatin, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gregory Czer, MD accept Medicare? ▼
Gregory Czer, MD appears in CMS Medicare data with 1,288 Part D claims and 202 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregory Czer, MD's credentials? ▼
Gregory Czer, MD's NPI is 1932218963 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.
- 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.