NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1679569743 M.D.
Verify on CMS → Edward Singer, M.D.
Gastroenterology 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 17,061 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
947
Medicare Part D claims · 212 beneficiaries · Gastroenterology Physician avg: 848
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
28.9/100
▼ 55 pts below national avg 83.5 · Below average
Industry payments
$141.02
6 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Edward Singer, M.D. reported a CMS MIPS final score of 28.9/100 - below the 83.5 national average - and filed 947 Medicare Part D claims in 2024.
- 28.9/100
- MIPS score · -55 vs avg
- 947
- Part D claims, 2024
- 89%
- 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.
Federal trust snapshot
What official records show about Edward Singer, M.D.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1679569743), first enumerated 09/23/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 947 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 28.9/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Industry payment transparency
$141.02 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Edward Singer, M.D.'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 1679569743 · Gastroenterology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-LOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1679569743
- ENUM-LEGACY 2005
- TAX-MID 17K Gastroenterology Physician
- MIPS-LOW 28.9/100
- RX-LIGHT 947
- BOOK-LIGHT 1,749 in California
- PHOTO-FINISH Barry Kaufman, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Samuel Davidoff,…
Samuel Davidoff, MD
28.8 MIPS pts
- Singer · this pr…
Singer · this provider
28.9 MIPS pts
- Barry Kaufman, M…
Barry Kaufman, MD
28.9 MIPS pts
- Nagy Morsi, M.D.…
Nagy Morsi, M.D.
29 MIPS pts
- Thomas Sherman, …
Thomas Sherman, MD
29.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Edward Singer, M.D.'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.
29 ≥ 3rd percentile 3% 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 Edward Singer, M.D. sits
This provider among gastroenterology physician peers
Across the 5,560 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Edward Singer, M.D. writes more Part D claims than 60% of them and scores higher on MIPS quality than 5% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one gastroenterology physician peer from a representative sample of 60; the gold marker is Edward Singer, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Edward Singer, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Edward Singer, M.D.?
Below national averagePrimary specialty
Gastroenterology Physician
Medicare Part D claims
947 12% vs specialty avg
MIPS final score
28.9/100 54.6 pts vs avg
Specialty distribution in California
How Gastroenterology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Edward Singer, M.D.'s 2023 MIPS final score plotted against the Gastroenterology Physician national average
- MIPS Final Score
- 28.9/100
- vs 83.5 national avg · 2023 performance year
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 | 1679569743 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/23/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
28.9326
Final Score
Measured-score avg: 83.5
0
Quality
96.442
Cost
Reporting: Individual
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 Edward Singer, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$141
Largest payer
Intercept Pharmaceuticals, 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 Edward Singer, M.D.. To verify Edward Singer, 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
Edward Singer, M.D. - brand share 11.0%
Gastroenterology Physician average
11% brand-name claims vs 89% generic, on 947 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.
947
Total Claims
$92K
Total Drug Cost
212
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,534.8
- Total Day Supply
- 40,976
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $51K
- Generic Drug Cost
- $41K
- Antibiotic Claims
- 36
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 11, 65-74: 104, 75-84: 68, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Edward Singer, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Omeprazole
Omeprazole
84 claims
- Sod Sulf-Potass Su…
Sod Sulf-Potass Sulf-Mag Sulf
83 claims
- Dicyclomine Hcl
Dicyclomine Hcl
51 claims
- Pantoprazole Sodium
Pantoprazole Sodium
48 claims
- Sucralfate
Sucralfate
40 claims
- Atorvastatin Calcium
Atorvastatin Calcium
36 claims
- Famotidine 32
Famotidine
32 claims
- Amlodipine Besylate 25
Amlodipine Besylate
25 claims
| Drug | Claims |
|---|---|
| Omeprazole | 84 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 83 |
| Dicyclomine Hcl | 51 |
| Pantoprazole Sodium | 48 |
| Sucralfate | 40 |
| Atorvastatin Calcium | 36 |
| Famotidine | 32 |
| Amlodipine Besylate | 25 |
| Mesalamine | 22 |
| Potassium Chloride | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Edward Singer, M.D. fits within the Gastroenterology Physician landscape nationally.
17,061
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
848
Avg Claims per Provider
Edward Singer, M.D.'s 947 claims are above the specialty average of 848.
Nationwide Gastroenterology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Singer, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (28.9 here).
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gastroenterology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Singer.
One of 1,749 Gastroenterology Physician providers enrolled in California, 5 are shown here.
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 →
Frequently Asked Questions
What is Edward Singer, M.D.'s specialty? ▼
Edward Singer, M.D. specializes in Gastroenterology Physician and practices in Chula Vista, California. Credentials: M.D..
How much does Edward Singer, M.D. prescribe under Medicare Part D? ▼
In 2024, Edward Singer, M.D. wrote 947 Medicare Part D claims totaling $92K in drug costs for 212 beneficiaries.
What is Edward Singer, M.D.'s Medicare quality score? ▼
Edward Singer, M.D. has a CMS MIPS Final Score of 28.9/100 (Quality: 0, Cost: 96.4). 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 Edward Singer, M.D. located? ▼
Edward Singer, M.D. is located at 752 MEDICAL CENTER CT, Chula Vista, CA, 91911. Phone: (619) 421-1155.
What is Edward Singer, M.D.'s NPI number? ▼
Edward Singer, M.D.'s National Provider Identifier (NPI) is 1679569743, issued on 09/23/2005.
Does Edward Singer, M.D. prescribe more brand-name or generic drugs? ▼
Edward Singer, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $51K in brand drug costs.
How many Gastroenterology Physician providers are there in the US? ▼
There are 17,061 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 848 Medicare Part D claims per year.
What drugs does Edward Singer, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Edward Singer, M.D.'s most frequently prescribed drugs include Omeprazole, Sod Sulf-Potass Sulf-Mag Sulf, Dicyclomine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Edward Singer, M.D. accept Medicare? ▼
Edward Singer, M.D. appears in CMS Medicare data with 947 Part D claims and 212 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Edward Singer, M.D.'s credentials? ▼
Edward Singer, M.D.'s NPI is 1679569743 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 (2024). 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 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.