NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1992904023 M.D.
Verify on CMS → Vaibhav Sahai, M.D.
Hematology & Oncology Physician in Ann Arbor, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,215 in Hematology & Oncology 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
522
Medicare Part D claims · 104 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$15.9K
14 payments · CMS Open Payments (Sunshine Act)
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
Vaibhav Sahai, M.D. filed 522 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Ann Arbor, Michigan, prescribing 76% generic.
- 522
- Part D claims, 2023
- 76%
- 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.
Vaibhav Sahai, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
522 Top 34% higher than 66% 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 certification likely (heuristic, not verified)
Vaibhav Sahai, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Vaibhav Sahai, M.D.?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
522 38% vs specialty avg
Specialty distribution in Michigan
How Hematology & Oncology Physician compares to other specialties among Michigan 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 Hematology & Oncology 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).
Vaibhav Sahai, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 1500 EAST MEDICAL CENTER DR, Ann Arbor, MI, 48109, with a listed phone of (734) 647-8902. NPI 1992904023 was issued on 07/18/2007.
Medicare Part D records for calendar year 2023 show 522 prescription claims written by this provider, covering 104 Medicare beneficiaries and totaling roughly $505K in drug spend, split 24% brand-name and 76% generic by claim count, with an opioid prescribing rate of 8.8%.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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 | 1992904023 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/18/2007 |
Hospital and facility affiliations
Facilities where Vaibhav Sahai, 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.
Regents OF The University OF Michigan
Ann Arbor, MI
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 Vaibhav Sahai, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$15.9K
Largest payer
Ipsen Biopharmaceuticals, Inc
Most common payment type
Travel and Lodging
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 - Michigan MI-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 ~41K Michigan medical licensees in 2023 - they are NOT specific to Vaibhav Sahai, M.D.. To verify Vaibhav Sahai, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Vaibhav Sahai, M.D. - brand share 24.0%
Hematology & Oncology Physician average
24% brand-name claims vs 76% generic, on 522 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.
522
Total Claims
$505K
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 687
- Total Day Supply
- 17,654
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $441K
- Generic Drug Cost
- $64K
- Opioid Claims
- 46 (8.8% rate)
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 3.21
- Gender Split
- 50% female / 50% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Vaibhav Sahai, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Creon
Creon
47 claims
- Prochlorperazine M…
Prochlorperazine Maleate
45 claims
- Ondansetron Hcl
Ondansetron Hcl
42 claims
- Eliquis
Eliquis
34 claims
- Olanzapine
Olanzapine
26 claims
- Gabapentin
Gabapentin
19 claims
- Lidocaine-Prilocaine 16
Lidocaine-Prilocaine
16 claims
- Omeprazole 16
Omeprazole
16 claims
| Drug | Claims |
|---|---|
| Creon Lipase/Protease/Amylase | 47 |
| Prochlorperazine Maleate | 45 |
| Ondansetron Hcl | 42 |
| Eliquis Apixaban | 34 |
| Olanzapine | 26 |
| Gabapentin | 19 |
| Lidocaine-Prilocaine Lidocaine/Prilocaine | 16 |
| Omeprazole | 16 |
| Ursodiol | 13 |
| Dexamethasone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Vaibhav Sahai, M.D. fits within the Hematology & Oncology Physician landscape nationally.
11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Vaibhav Sahai, M.D.'s 522 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Sahai.
Dr. Ahmed Abdel-Maksoud
MD
Midland, MI
Dr. Jonathan Abramson
M. D.
Bay City, MI
Dr. Calvin Abro
MD
Battle Creek, MI
Lindsey Ackerman
Sterling Heights, MI
Dr. Paul Adams
M.D.
Flint, MI
Compare Hematology & Oncology 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 Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & Oncology 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 Vaibhav Sahai, M.D.'s specialty? ▼
Vaibhav Sahai, M.D. specializes in Hematology & Oncology Physician and practices in Ann Arbor, Michigan. Credentials: M.D..
How much does Vaibhav Sahai, M.D. prescribe under Medicare Part D? ▼
In 2023, Vaibhav Sahai, M.D. wrote 522 Medicare Part D claims totaling $505K in drug costs for 104 beneficiaries.
Where is Vaibhav Sahai, M.D. located? ▼
Vaibhav Sahai, M.D. is located at 1500 EAST MEDICAL CENTER DR, Ann Arbor, MI, 48109. Phone: (734) 647-8902.
What is Vaibhav Sahai, M.D.'s NPI number? ▼
Vaibhav Sahai, M.D.'s National Provider Identifier (NPI) is 1992904023, issued on 07/18/2007.
Does Vaibhav Sahai, M.D. prescribe more brand-name or generic drugs? ▼
Vaibhav Sahai, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $441K in brand drug costs.
Does Vaibhav Sahai, M.D. prescribe opioids? ▼
Yes, Vaibhav Sahai, M.D. had 46 opioid claims in 2023 with an opioid prescribing rate of 8.8%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Vaibhav Sahai, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Vaibhav Sahai, M.D.'s most frequently prescribed drugs include Creon, Prochlorperazine Maleate, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Vaibhav Sahai, M.D. accept Medicare? ▼
Vaibhav Sahai, M.D. appears in CMS Medicare data with 522 Part D claims and 104 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Vaibhav Sahai, M.D.'s credentials? ▼
Vaibhav Sahai, M.D.'s NPI is 1992904023 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.
- 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.