NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1134202500 M.D.
Verify on CMS → Ramsey Umar, M.D.
Gastroenterology Physician in Mesa, Arizona.
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
1K
Medicare Part D claims · 390 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$1.3K
64 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Ramsey Umar, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 1,151 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 1K
- Part D claims, 2023
- 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.
CMS NPPES provider registry desk
NPI 1134202500 · Gastroenterology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-NEUTRAL · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1134202500
- ENUM-LEGACY 2006
- TAX-MID 17K Gastroenterology Physician
- MIPS-NEUTRAL 75/100
- RX-MID 1,151
- BOOK-THIN 329 in Arizona
- PHOTO-ENUM Roger Koerner · 2006
Ramsey Umar, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,151 ≥ 77th percentile 77% 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 certification likely (heuristic, not verified)
Ramsey Umar, 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 Ramsey Umar, M.D.?
CMS neutral score, not measuredPrimary specialty
Gastroenterology Physician
Medicare Part D claims
1,151 38% vs specialty avg
MIPS final score
75/100
Specialty distribution in Arizona
How Gastroenterology Physician compares to other specialties among Arizona providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1134202500 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/21/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
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 Ramsey Umar, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.3K
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.
Brand vs generic prescribing mix · Typical
Ramsey Umar, M.D. - brand share 11.0%
Gastroenterology Physician average
11% brand-name claims vs 89% generic, on 1,151 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.
1,151
Total Claims
$500K
Total Drug Cost
390
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,837
- Total Day Supply
- 81,719
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $434K
- Generic Drug Cost
- $66K
- Antibiotic Claims
- 70
Patient Demographics
- Average Patient Age
- 74.5 years
- Avg HCC Risk Score
- 1.43
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 23, 65-74: 171, 75-84: 164, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ramsey Umar, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
428 claims
- Omeprazole 155
Omeprazole
155 claims
- Budesonide Dr 68
Budesonide Dr
68 claims
- Mesalamine 34
Mesalamine
34 claims
- Budesonide Ec 29
Budesonide Ec
29 claims
- Colestipol Hcl 29
Colestipol Hcl
29 claims
- Esomeprazole Magne… 27
Esomeprazole Magnesium
27 claims
- Ocaliva 21
Ocaliva
21 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 428 |
| Omeprazole | 155 |
| Budesonide Dr Budesonide | 68 |
| Mesalamine | 34 |
| Budesonide Ec Budesonide | 29 |
| Colestipol Hcl | 29 |
| Esomeprazole Magnesium | 27 |
| Ocaliva Obeticholic Acid | 21 |
| Ursodiol | 20 |
| Amitriptyline Hcl | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Ramsey Umar, M.D. fits within the Gastroenterology Physician landscape nationally.
16,601
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Ramsey Umar, M.D.'s 1,151 claims are above the specialty average of 833.
Nationwide Gastroenterology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Umar, both outside Arizona so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gastroenterology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Umar.
One of 329 Gastroenterology Physician providers enrolled in Arizona, 5 are shown here.
Dr. Neena Abraham
MD
Scottsdale, AZ
Dr. Avin Aggarwal
M.D.
Tucson, AZ
Dr. Sanjay Ahluwalia
M.D.
Chandler, AZ
Dr. Bassel Al-Lahham
MD
Phoenix, AZ
Dr. Aws Alameri
MD
Phoenix, AZ
Compare Gastroenterology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Ramsey Umar, M.D.'s specialty? ▼
Ramsey Umar, M.D. specializes in Gastroenterology Physician and practices in Mesa, Arizona. Credentials: M.D..
How much does Ramsey Umar, M.D. prescribe under Medicare Part D? ▼
In 2023, Ramsey Umar, M.D. wrote 1,151 Medicare Part D claims totaling $500K in drug costs for 390 beneficiaries.
What is Ramsey Umar, M.D.'s Medicare quality score? ▼
Ramsey Umar, M.D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 Ramsey Umar, M.D. located? ▼
Ramsey Umar, M.D. is located at 6020 E ARBOR AVE STE 101, Mesa, AZ, 85206. Phone: (480) 985-1700.
What is Ramsey Umar, M.D.'s NPI number? ▼
Ramsey Umar, M.D.'s National Provider Identifier (NPI) is 1134202500, issued on 10/21/2006.
Does Ramsey Umar, M.D. prescribe more brand-name or generic drugs? ▼
Ramsey Umar, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $434K 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 Ramsey Umar, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ramsey Umar, M.D.'s most frequently prescribed drugs include Pantoprazole Sodium, Omeprazole, Budesonide Dr. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ramsey Umar, M.D. accept Medicare? ▼
Ramsey Umar, M.D. appears in CMS Medicare data with 1,151 Part D claims and 390 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ramsey Umar, M.D.'s credentials? ▼
Ramsey Umar, M.D.'s NPI is 1134202500 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
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.