NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1578530804 MD
Verify on CMS → Chandravathi Loke, MD
Hematology (Internal Medicine) Physician in Springfield, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,483 in Hematology (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
1K
Medicare Part D claims · 211 beneficiaries · Hematology (Internal Medicine) Physician avg: 684
Generic prescribing
49%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$35.62
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Chandravathi Loke, MD filed 1,169 Medicare Part D claims in 2024 as a Hematology (Internal Medicine) Physician in Springfield, Massachusetts, prescribing 49% generic.
- 1K
- Part D claims, 2024
- 49%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥77th
- 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 Chandravathi Loke, 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 1578530804), first enumerated 03/06/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,169 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$35.62 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
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Chandravathi Loke, MD's individual license status. Verify directly with the state medical board.
Source: BORIM 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 1578530804 · Hematology (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1578530804
- ENUM-LEGACY 2006
- TAX-NARROW 1,483
- RX-MID 1,169
- BOOK-THIN 95 in Massachusetts
- PHOTO-ENUM Tatyana Feldman, M.D. · 2006
Chandravathi Loke, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,169 ≥ 77th percentile 77% of 1,416,883 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 · 2024
✓
Board certification likely (heuristic, not verified)
Chandravathi Loke, MD 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 Chandravathi Loke, MD?
Quality data not reportedPrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
1,169 71% vs specialty avg
Specialty distribution in Massachusetts
How Hematology (Internal Medicine) Physician compares to other specialties among Massachusetts 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 (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 | 1578530804 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 03/06/2006 |
Hospital and facility affiliations
Facilities where Chandravathi Loke, MD 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.
Baystate Medical Practices Inc
Springfield, MA
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 Chandravathi Loke, MD. Source: openpaymentsdata.cms.gov.
Total received
$36
Largest payer
Alnylam Pharmaceuticals Inc.
Most common payment type
Education
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 - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Chandravathi Loke, MD. To verify Chandravathi Loke, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Chandravathi Loke, MD - brand share 51.0%
Hematology (Internal Medicine) Physician average
51% brand-name claims vs 49% generic, on 1,169 2024 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 2024.
1,169
Total Claims
$10.6M
Total Drug Cost
211
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,594.5
- Total Day Supply
- 45,388
- Brand vs Generic
- 51% brand / 49% generic
- Brand Drug Cost
- $8.9M
- Generic Drug Cost
- $1.6M
- Opioid Claims
- 11 (0.9% rate)
- Antibiotic Claims
- 44
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 2.15
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 25, 65-74: 85, 75-84: 79, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Chandravathi Loke, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Lenalidomide
Lenalidomide
131 claims
- Hydroxyurea
Hydroxyurea
95 claims
- Pomalyst
Pomalyst
91 claims
- Anastrozole
Anastrozole
81 claims
- Revlimid
Revlimid
73 claims
- Brukinsa
Brukinsa
55 claims
- Ninlaro
Ninlaro
55 claims
- Ibrance 52
Ibrance
52 claims
| Drug | Claims |
|---|---|
| Lenalidomide | 131 |
| Hydroxyurea | 95 |
| Pomalyst Pomalidomide | 91 |
| Anastrozole | 81 |
| Revlimid Lenalidomide | 73 |
| Brukinsa Zanubrutinib | 55 |
| Ninlaro Ixazomib Citrate | 55 |
| Ibrance Palbociclib | 52 |
| Venclexta Venetoclax | 47 |
| Calquence Acalabrutinib Maleate | 46 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in MA →
All providers in Massachusetts →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Chandravathi Loke, MD fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,483
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
684
Avg Claims per Provider
Chandravathi Loke, MD's 1,169 claims are above the specialty average of 684.
Nationwide Hematology (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Loke, both outside Massachusetts 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 Hematology (Internal Medicine) Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Loke.
One of 95 Hematology (Internal Medicine) Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Maya Abdallah
MD
Boston, MA
Dr. Burt Alan Adelman
M.D.
Cambridge, MA
Dr. Joseph Antin
MD
Boston, MA
Dr. Daniel Ardeljan
MD, PHD
Boston, MA
Dr. Joseph Aziz
M.D
Boston, MA
Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Chandravathi Loke, MD's specialty? ▼
Chandravathi Loke, MD specializes in Hematology (Internal Medicine) Physician and practices in Springfield, Massachusetts. Credentials: MD.
How much does Chandravathi Loke, MD prescribe under Medicare Part D? ▼
In 2024, Chandravathi Loke, MD wrote 1,169 Medicare Part D claims totaling $10.6M in drug costs for 211 beneficiaries.
Where is Chandravathi Loke, MD located? ▼
Chandravathi Loke, MD is located at 3350 MAIN ST, Springfield, MA, 01107. Phone: (413) 794-9338.
What is Chandravathi Loke, MD's NPI number? ▼
Chandravathi Loke, MD's National Provider Identifier (NPI) is 1578530804, issued on 03/06/2006.
Does Chandravathi Loke, MD prescribe more brand-name or generic drugs? ▼
Chandravathi Loke, MD's prescribing is 51% brand-name and 49% generic drugs by claim count, with $8.9M in brand drug costs.
Does Chandravathi Loke, MD prescribe opioids? ▼
Yes, Chandravathi Loke, MD had 11 opioid claims in 2024 with an opioid prescribing rate of 0.9%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,483 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 684 Medicare Part D claims per year.
What drugs does Chandravathi Loke, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Chandravathi Loke, MD's most frequently prescribed drugs include Lenalidomide, Hydroxyurea, Pomalyst. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chandravathi Loke, MD accept Medicare? ▼
Chandravathi Loke, MD appears in CMS Medicare data with 1,169 Part D claims and 211 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chandravathi Loke, MD's credentials? ▼
Chandravathi Loke, MD's NPI is 1578530804 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.