NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1659526812 M.D. , PH.D.
Verify on CMS → Yongli Ji, M.D. , PH.D.
Hematology & Oncology Physician in Boston, 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 11,232 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
459
Medicare Part D claims · 141 beneficiaries · Hematology & Oncology Physician avg: 847
Industry payments
$180.8
2 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Yongli Ji, M.D. , PH.D. filed 459 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Boston, Massachusetts.
- 459
- Part D claims, 2023
- 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.
Yongli Ji, M.D. , PH.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
459 Top 38% higher than 62% 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)
Yongli Ji, M.D. , PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - 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 Yongli Ji, M.D. , PH.D.?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
459 46% vs specialty avg
Specialty distribution in Massachusetts
How Hematology & Oncology 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 & 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).
Yongli Ji, M.D. , PH.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. , PH.D. credentials at 55 FRUIT STREET, Boston, MA, 02114, with a listed phone of (617) 724-4000. NPI 1659526812 was issued on 12/01/2008.
Medicare Part D records for calendar year 2023 show 459 prescription claims written by this provider, covering 141 Medicare beneficiaries and totaling roughly $460K in drug spend, with an opioid prescribing rate of 8.1%.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 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 | 1659526812 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. , PH.D. |
| Gender | Female |
| NPI Issued | 12/01/2008 |
Hospital and facility affiliations
Facilities where Yongli Ji, M.D. , PH.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.
According to CMS billing records, Yongli Ji, M.D. , PH.D. is affiliated with 3 Medicare-billing facilities, 1 of which carry a CMS Hospital overall star rating.
Nantucket Cottage Hospital
★★★☆☆ 3/5
Nantucket, MA
Acute Care Hospitals
CMS CCN: 220177
Massachusetts General Physicians Organization Inc
Boston, MA
The General Hospital Corporation
Danvers, 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 Yongli Ji, M.D. , PH.D.. Source: openpaymentsdata.cms.gov.
Total received
$181
Largest payer
Rigel Pharmaceuticals, 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 - 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 Yongli Ji, M.D. , PH.D.. To verify Yongli Ji, M.D. , PH.D.'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
459
Total Claims
$460K
Total Drug Cost
141
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 680
- Total Day Supply
- 17,784
- Generic Drug Cost
- $14K
- Opioid Claims
- 37 (8.1% rate)
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 1.85
- Gender Split
- 75% female / 25% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Yongli Ji, M.D. , PH.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
51 claims
- Allopurinol
Allopurinol
38 claims
- Gabapentin
Gabapentin
33 claims
- Letrozole
Letrozole
31 claims
- Prednisone
Prednisone
23 claims
- Oxycodone Hcl 20
Oxycodone Hcl
20 claims
- Potassium Chloride 19
Potassium Chloride
19 claims
- Levothyroxine Sodium 18
Levothyroxine Sodium
18 claims
| Drug | Claims |
|---|---|
| Anastrozole | 51 |
| Allopurinol | 38 |
| Gabapentin | 33 |
| Letrozole | 31 |
| Prednisone | 23 |
| Oxycodone Hcl | 20 |
| Potassium Chloride | 19 |
| Levothyroxine Sodium | 18 |
| Acyclovir | 17 |
| Prochlorperazine Maleate | 14 |
* 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 Yongli Ji, M.D. , PH.D. fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Yongli Ji, M.D. , PH.D.'s 459 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Ji.
Dr. Gregory Abel
MD
Boston, MA
Dr. Rachel Abelman
MD
Boston, MA
Dr. Karim Abou-Nassar
MD
Boston, MA
Dr. Inas Abuali
M.D.
Boston, MA
Dr. Maureen Achebe
MD, MPH
Boston, MA
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 Massachusetts 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.
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
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How insurance networks affect your costs
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Virtual care options and coverage in 2026
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Frequently Asked Questions
What is Yongli Ji, M.D. , PH.D.'s specialty? ▼
Yongli Ji, M.D. , PH.D. specializes in Hematology & Oncology Physician and practices in Boston, Massachusetts. Credentials: M.D. , PH.D..
How much does Yongli Ji, M.D. , PH.D. prescribe under Medicare Part D? ▼
In 2023, Yongli Ji, M.D. , PH.D. wrote 459 Medicare Part D claims totaling $460K in drug costs for 141 beneficiaries.
Where is Yongli Ji, M.D. , PH.D. located? ▼
Yongli Ji, M.D. , PH.D. is located at 55 FRUIT STREET, Boston, MA, 02114. Phone: (617) 724-4000.
What is Yongli Ji, M.D. , PH.D.'s NPI number? ▼
Yongli Ji, M.D. , PH.D.'s National Provider Identifier (NPI) is 1659526812, issued on 12/01/2008.
Does Yongli Ji, M.D. , PH.D. prescribe opioids? ▼
Yes, Yongli Ji, M.D. , PH.D. had 37 opioid claims in 2023 with an opioid prescribing rate of 8.1%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 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 Yongli Ji, M.D. , PH.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Yongli Ji, M.D. , PH.D.'s most frequently prescribed drugs include Anastrozole, Allopurinol, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yongli Ji, M.D. , PH.D. accept Medicare? ▼
Yongli Ji, M.D. , PH.D. appears in CMS Medicare data with 459 Part D claims and 141 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yongli Ji, M.D. , PH.D.'s credentials? ▼
Yongli Ji, M.D. , PH.D.'s NPI is 1659526812 with credentials M.D. , PH.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.
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.