NPI registry status
Active
2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1265937411 DO
Verify on CMS → Parth Shah, DO
Retina Specialist (Ophthalmology) Physician in Saint Louis, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 913 in Retina Specialist (Ophthalmology) 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
211
Medicare Part D claims · 90 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3/100
▼ 4 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Parth Shah, DO reported a CMS MIPS final score of 79.3/100 - below the 83.1 national average - and filed 211 Medicare Part D claims in 2023.
- 79.3/100
- MIPS score · -4 vs avg
- 211
- Part D claims, 2023
- 55%
- 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.
Parth Shah, DO's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 30th percentile higher than 30% 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 Parth Shah, DO sits
This provider among retina specialist (ophthalmology) physician peers
Across the 583 retina specialist (ophthalmology) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Parth Shah, DO writes more Part D claims than 22% of them and scores higher on MIPS quality than 18% - placing this provider in the lower-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 retina specialist (ophthalmology) physician peer from a representative sample of 60; the gold marker is Parth Shah, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Parth Shah, DO 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 Parth Shah, DO?
Near national averagePrimary specialty
Retina Specialist (Ophthalmology) Physician
Medicare Part D claims
211 62% vs specialty avg
MIPS final score
79.3/100 3.8 pts vs avg
Specialty distribution in Missouri
How Retina Specialist (Ophthalmology) Physician compares to other specialties among Missouri providers
Medicare quality performance, MIPS
Parth Shah, DO's 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average
- MIPS Final Score
- 79.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Retina Specialist (Ophthalmology) Physician) - 79.3/100 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).
Parth Shah, DO appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding DO credentials at 4901 FOREST PARK AVE, Saint Louis, MO, 63108, with a listed phone of (314) 362-3937. NPI 1265937411 was issued on 03/29/2018.
Medicare Part D records for calendar year 2023 show 211 prescription claims written by this provider, covering 90 Medicare beneficiaries and totaling roughly $13K in drug spend, split 45% brand-name and 55% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3/100 for the 2023 performance year (Quality 71.5, Cost 59.5), compared with the national average of 83.1.
Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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 | 1265937411 |
|---|---|
| Specialty | Retina Specialist (Ophthalmology) Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 03/29/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.292
Final Score
Avg: 83.1
71.46
Quality
59.5132
Cost
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Above average
Parth Shah, DO - brand share 45.0%
Retina Specialist (Ophthalmology) Physician average
45% brand-name claims vs 55% generic, on 211 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.
211
Total Claims
$13K
Total Drug Cost
90
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 282
- Total Day Supply
- 7,176
- Brand vs Generic
- 45% brand / 55% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 68.5 years
- Avg HCC Risk Score
- 2.46
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 28, 65-74: 30, 75-84: 20, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Parth Shah, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisolone Acetate
Prednisolone Acetate
73 claims
- Tobramycin 22
Tobramycin
22 claims
- Difluprednate 21
Difluprednate
21 claims
- Dorzolamide-Timolol 20
Dorzolamide-Timolol
20 claims
- Moxifloxacin 11
Moxifloxacin
11 claims
| Drug | Claims |
|---|---|
| Prednisolone Acetate | 73 |
| Tobramycin | 22 |
| Difluprednate | 21 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 20 |
| Moxifloxacin Moxifloxacin Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Retina Specialist (Ophthalmology) Physician in MO →
All providers in Missouri →
Compare specialties →
Retina Specialist (Ophthalmology) Physician Overview
How Parth Shah, DO fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.
913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider
Parth Shah, DO's 211 claims are below the specialty average of 558.
Nearby Retina Specialist (Ophthalmology) Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Shah.
Dr. William Anderson
MD
Brentwood, MO
Dr. Waseem Ansari
M.D.
Saint Louis, MO
Dr. Barton Blackorby
MD
Brentwood, MO
Dr. Jerry Blair
M.D., PH.D.
Columbia, MO
Dr. Kevin Blinder
MD
Brentwood, MO
Compare Retina Specialist (Ophthalmology) 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Retina Specialist (Ophthalmology) 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 Parth Shah, DO's specialty? ▼
Parth Shah, DO specializes in Retina Specialist (Ophthalmology) Physician and practices in Saint Louis, Missouri. Credentials: DO.
How much does Parth Shah, DO prescribe under Medicare Part D? ▼
In 2023, Parth Shah, DO wrote 211 Medicare Part D claims totaling $13K in drug costs for 90 beneficiaries.
What is Parth Shah, DO's Medicare quality score? ▼
Parth Shah, DO has a CMS MIPS Final Score of 79.3/100 (Quality: 71.5, Cost: 59.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Parth Shah, DO located? ▼
Parth Shah, DO is located at 4901 FOREST PARK AVE, Saint Louis, MO, 63108. Phone: (314) 362-3937.
What is Parth Shah, DO's NPI number? ▼
Parth Shah, DO's National Provider Identifier (NPI) is 1265937411, issued on 03/29/2018.
Does Parth Shah, DO prescribe more brand-name or generic drugs? ▼
Parth Shah, DO's prescribing is 45% brand-name and 55% generic drugs by claim count, with $6K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US? ▼
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does Parth Shah, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Parth Shah, DO's most frequently prescribed drugs include Prednisolone Acetate, Tobramycin, Difluprednate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Parth Shah, DO accept Medicare? ▼
Parth Shah, DO appears in CMS Medicare data with 211 Part D claims and 90 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Parth Shah, DO's credentials? ▼
Parth Shah, DO's NPI is 1265937411 with credentials DO. 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.