NPI registry status
Active
2026 NPPES data Anesthesiology Physician NPI 1043645526 M.D.
Verify on CMS → Ajaz Siddiqui, M.D.
Anesthesiology Physician in Phillipsburg, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 56,432 in Anesthesiology 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
193
Medicare Part D claims · 87 beneficiaries · Anesthesiology Physician avg: 860
MIPS score
95.6/100
▲ 13 pts above national avg 83.1 · Exceptional
Industry payments
$19.62
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ajaz Siddiqui, M.D. reported a CMS MIPS final score of 95.6/100 - above the 83.1 national average - and filed 193 Medicare Part D claims in 2023.
- 95.6/100
- MIPS score · +13 vs avg
- 193
- Part D claims, 2023
- 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.
Ajaz Siddiqui, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
96 Top 21% higher than 79% 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 Ajaz Siddiqui, M.D. sits
This provider among anesthesiology physician peers
Across the 1,666 anesthesiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ajaz Siddiqui, M.D. writes more Part D claims than 38% of them and scores higher on MIPS quality than 82% - placing this provider in the lower-volume, high-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 anesthesiology physician peer from a representative sample of 60; the gold marker is Ajaz Siddiqui, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ajaz Siddiqui, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations - 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 Ajaz Siddiqui, M.D.?
High performer (top quartile)Primary specialty
Anesthesiology Physician
Medicare Part D claims
193 78% vs specialty avg
MIPS final score
95.6/100 12.5 pts vs avg
Specialty distribution in New Jersey
How Anesthesiology Physician compares to other specialties among New Jersey providers
Medicare quality performance, MIPS
Ajaz Siddiqui, M.D.'s 2023 MIPS final score plotted against the Anesthesiology Physician national average
- MIPS Final Score
- 95.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Anesthesiology Physician) - 95.6/100 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).
Ajaz Siddiqui, M.D. appears in the CMS NPPES registry as an Anesthesiology Physician provider holding M.D. credentials at 755 MEMORIAL PKWY, Phillipsburg, NJ, 08865, with a listed phone of (908) 835-1910. NPI 1043645526 was issued on 09/04/2013.
Medicare Part D records for calendar year 2023 show 193 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $5K in drug spend, with an opioid prescribing rate of 18.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.6/100 for the 2023 performance year (Quality 80.6), compared with the national average of 83.1.
Anesthesiology Physician is a high-volume specialty nationwide, with 56,432 enrolled providers across 56 states and an average of 860 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 | 1043645526 |
|---|---|
| Specialty | Anesthesiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/04/2013 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
95.6426
Final Score
Avg: 83.1
80.5735
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Ajaz Siddiqui, M.D. 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.
According to CMS billing records, Ajaz Siddiqui, M.D. is affiliated with 3 Medicare-billing facilities.
Performance Medical Group OF Hillsborough LLC
Hillsborough, NJ
Performance Medical Group OF Somerset
Somerset, NJ
Physician Anesthesia Services LLC
Bridgewater, NJ
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 Ajaz Siddiqui, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$20
Largest payer
DePuy Synthes Sales 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
193
Total Claims
$5K
Total Drug Cost
87
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 201
- Total Day Supply
- 5,236
- Generic Drug Cost
- $4K
- Opioid Claims
- 35 (18.1% rate)
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 1.76
- Gender Split
- 59% female / 41% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ajaz Siddiqui, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
55 claims
- Pregabalin 19
Pregabalin
19 claims
- Diclofenac Sodium 11
Diclofenac Sodium
11 claims
- Hydrocodone-Acetam… 11
Hydrocodone-Acetaminophen
11 claims
| Drug | Claims |
|---|---|
| Gabapentin | 55 |
| Pregabalin | 19 |
| Diclofenac Sodium | 11 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Anesthesiology Physician Overview
How Ajaz Siddiqui, M.D. fits within the Anesthesiology Physician landscape nationally.
56,432
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider
Ajaz Siddiqui, M.D.'s 193 claims are below the specialty average of 860.
Nearby Anesthesiology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Siddiqui.
Dr. Eric Aberbach
M.D.
Pompton Plains, NJ
Dr. Arkadiy Abkin
MD
Morristown, NJ
Dr. Jacob Abraham
M.D.
Ridgewood, NJ
Dr. Grace Abramian
M. D.
Camden, NJ
Dr. Jonathan Abrams
MD
Summit, NJ
Compare Anesthesiology 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 New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Anesthesiology 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 Ajaz Siddiqui, M.D.'s specialty? ▼
Ajaz Siddiqui, M.D. specializes in Anesthesiology Physician and practices in Phillipsburg, New Jersey. Credentials: M.D..
How much does Ajaz Siddiqui, M.D. prescribe under Medicare Part D? ▼
In 2023, Ajaz Siddiqui, M.D. wrote 193 Medicare Part D claims totaling $5K in drug costs for 87 beneficiaries.
What is Ajaz Siddiqui, M.D.'s Medicare quality score? ▼
Ajaz Siddiqui, M.D. has a CMS MIPS Final Score of 95.6/100 (Quality: 80.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ajaz Siddiqui, M.D. located? ▼
Ajaz Siddiqui, M.D. is located at 755 MEMORIAL PKWY, Phillipsburg, NJ, 08865. Phone: (908) 835-1910.
What is Ajaz Siddiqui, M.D.'s NPI number? ▼
Ajaz Siddiqui, M.D.'s National Provider Identifier (NPI) is 1043645526, issued on 09/04/2013.
Does Ajaz Siddiqui, M.D. prescribe opioids? ▼
Yes, Ajaz Siddiqui, M.D. had 35 opioid claims in 2023 with an opioid prescribing rate of 18.1%.
How many Anesthesiology Physician providers are there in the US? ▼
There are 56,432 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Ajaz Siddiqui, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ajaz Siddiqui, M.D.'s most frequently prescribed drugs include Gabapentin, Pregabalin, Diclofenac Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ajaz Siddiqui, M.D. accept Medicare? ▼
Ajaz Siddiqui, M.D. appears in CMS Medicare data with 193 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ajaz Siddiqui, M.D.'s credentials? ▼
Ajaz Siddiqui, M.D.'s NPI is 1043645526 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 (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.