NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1992743488 MD
Verify on CMS → Richard Manka, MD
Ophthalmology Physician in Saint Paul, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 in 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
755
Medicare Part D claims · 222 beneficiaries · Ophthalmology Physician avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Richard Manka, MD filed 755 Medicare Part D claims in 2023 as a Ophthalmology Physician in Saint Paul, Minnesota.
- 755
- Part D claims, 2023
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.
Richard Manka, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
755 Top 29% higher than 71% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Richard Manka, 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 Richard Manka, MD?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
755 47% vs specialty avg
Specialty distribution in Minnesota
How Ophthalmology Physician compares to other specialties among Minnesota 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 Ophthalmology 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).
Richard Manka, MD appears in the CMS NPPES registry as an Ophthalmology Physician provider holding MD credentials at 2500 COMO AVE, Saint Paul, MN, 55108, with a listed phone of (651) 641-6200. NPI 1992743488 was issued on 06/04/2006.
Medicare Part D records for calendar year 2023 show 755 prescription claims written by this provider, covering 222 Medicare beneficiaries and totaling roughly $50K in drug spend.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 enrolled providers across 56 states and an average of 1,420 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 | 1992743488 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/04/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
755
Total Claims
$50K
Total Drug Cost
222
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,338
- Total Day Supply
- 37,656
- Generic Drug Cost
- $18K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 75.9 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 12, 65-74: 90, 75-84: 76, 85+: 44
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Richard Manka, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
246 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
99 claims
- Timolol Maleate 92
Timolol Maleate
92 claims
- Prednisolone Acetate 53
Prednisolone Acetate
53 claims
- Neomycin-Polymyxin… 38
Neomycin-Polymyxin-Dexameth
38 claims
- Travoprost 34
Travoprost
34 claims
- Erythromycin 27
Erythromycin
27 claims
- Brimonidine Tartrate 23
Brimonidine Tartrate
23 claims
| Drug | Claims |
|---|---|
| Latanoprost | 246 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 99 |
| Timolol Maleate | 92 |
| Prednisolone Acetate | 53 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 38 |
| Travoprost | 34 |
| Erythromycin Erythromycin Base | 27 |
| Brimonidine Tartrate | 23 |
| Lumigan Bimatoprost | 15 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Richard Manka, MD fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Richard Manka, MD's 755 claims are below the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Manka.
Dr. Anne Abel
MD
Minneapolis, MN
Dr. Sanaz Afiat
M.D.
Edina, MN
Dr. Adam Ahlquist
M.D.
Crosby, MN
Dr. Charles Ahrens
M.D.
Duluth, MN
Dr. James Allen
M.D.
Woodbury, MN
Compare 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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.
Healthcare Guides
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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 Minnesota
Frequently Asked Questions
What is Richard Manka, MD's specialty? ▼
Richard Manka, MD specializes in Ophthalmology Physician and practices in Saint Paul, Minnesota. Credentials: MD.
How much does Richard Manka, MD prescribe under Medicare Part D? ▼
In 2023, Richard Manka, MD wrote 755 Medicare Part D claims totaling $50K in drug costs for 222 beneficiaries.
Where is Richard Manka, MD located? ▼
Richard Manka, MD is located at 2500 COMO AVE, Saint Paul, MN, 55108. Phone: (651) 641-6200.
What is Richard Manka, MD's NPI number? ▼
Richard Manka, MD's National Provider Identifier (NPI) is 1992743488, issued on 06/04/2006.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does Richard Manka, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Richard Manka, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Richard Manka, MD accept Medicare? ▼
Richard Manka, MD appears in CMS Medicare data with 755 Part D claims and 222 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Richard Manka, MD's credentials? ▼
Richard Manka, MD's NPI is 1992743488 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
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.