NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1558389262 MD
Verify on CMS → Manickam Sankaran, MD
Internal Medicine Physician in Altoona, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine 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
165
Medicare Part D claims · 126 beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$31.49
2 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Manickam Sankaran, MD filed 165 Medicare Part D claims in 2023 as an Internal Medicine Physician in Altoona, Pennsylvania.
- 165
- Part D claims, 2023
- $31.49
- industry payments (Sunshine Act)
- ≥35th
- pct by Part D claim volume (lower-bound band)
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 Manickam Sankaran, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1558389262), first enumerated 07/18/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 165 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$31.49 in reported industry payments (2 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
Pennsylvania statewide board action statistics are published annually — these figures describe aggregate state activity, not Manickam Sankaran, MD's individual license status. Verify directly with the state medical board.
Source: PA-BOM 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 1558389262 · Internal Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1558389262
- ENUM-LEGACY 2006
- TAX-MEGA 173K Internal Medicine
- RX-LIGHT 165
- BOOK-MID 8,542 in Pennsylvania
- PHOTO-ENUM Kris Anderson · 2006
Manickam Sankaran, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
165 ≥ 35th percentile 35% 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-eligible specialty (heuristic, not verified)
Manickam Sankaran, 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 Manickam Sankaran, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
165 94% vs specialty avg
Specialty distribution in Pennsylvania
How Internal Medicine Physician compares to other specialties among Pennsylvania 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 Internal Medicine 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).
Practice Address
Provider Details
| NPI | 1558389262 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/18/2006 |
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 Manickam Sankaran, MD. Source: openpaymentsdata.cms.gov.
Total received
$31
Largest payer
PFIZER 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 - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Manickam Sankaran, MD. To verify Manickam Sankaran, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
165
Total Claims
$5K
Total Drug Cost
126
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 183
- Total Day Supply
- 2,194
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 93
Patient Demographics
- Average Patient Age
- 69.8 years
- Avg HCC Risk Score
- 0.95
- 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 Manickam Sankaran, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amoxicillin
Amoxicillin
22 claims
- Cephalexin
Cephalexin
18 claims
- Azithromycin
Azithromycin
16 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
14 claims
- Paxlovid (Eua)
Paxlovid (Eua)
12 claims
- Methylprednisolone
Methylprednisolone
11 claims
| Drug | Claims |
|---|---|
| Amoxicillin | 22 |
| Cephalexin | 18 |
| Azithromycin | 16 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 14 |
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 12 |
| Methylprednisolone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Manickam Sankaran, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Manickam Sankaran, MD's 165 claims are below the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sankaran, both outside Pennsylvania so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Sankaran.
One of 8,542 Internal Medicine Physician providers enrolled in Pennsylvania, 5 are shown here.
Dr. Erin Aakhus
M.D.
Philadelphia, PA
Dr. Muhammad Aamir
MD
Allentown, PA
Dr. Saira Aamir
MD
York, PA
Dr. John Aaron
MD
West Grove, PA
Dr. Todd Aaron
MD
Philadelphia, PA
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Manickam Sankaran, MD's specialty? ▼
Manickam Sankaran, MD specializes in Internal Medicine Physician and practices in Altoona, Pennsylvania. Credentials: MD.
How much does Manickam Sankaran, MD prescribe under Medicare Part D? ▼
In 2023, Manickam Sankaran, MD wrote 165 Medicare Part D claims totaling $5K in drug costs for 126 beneficiaries.
Where is Manickam Sankaran, MD located? ▼
Manickam Sankaran, MD is located at 901 VALLEY VIEW BLVD, Altoona, PA, 16602. Phone: (814) 943-5198.
What is Manickam Sankaran, MD's NPI number? ▼
Manickam Sankaran, MD's National Provider Identifier (NPI) is 1558389262, issued on 07/18/2006.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Manickam Sankaran, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Manickam Sankaran, MD's most frequently prescribed drugs include Amoxicillin, Cephalexin, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Manickam Sankaran, MD accept Medicare? ▼
Manickam Sankaran, MD appears in CMS Medicare data with 165 Part D claims and 126 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Manickam Sankaran, MD's credentials? ▼
Manickam Sankaran, MD's NPI is 1558389262 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
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.