Dr. Benjamin Michael Heyman , MD
Internal Medicine - Hematology โข Irvine, CA
1000 Fivepoint Ste 1000a
Irvine, CA 926182377
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Benjamin Heyman is listed in NPPES under Internal Medicine - Hematology.
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NPI assigned on April 26, 2011; this date does not establish years in practice.
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Published CMS data list 946 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- G2211 โ Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 242 service units.
- 99213 โ Established patient outpatient office visit: 189 service units.
- 99215 โ Established patient outpatient office visit: 143 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 13 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 1,179 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Acyclovir โ 237 prescription fills, including refills.
- Revlimid (Lenalidomide) โ 90 prescription fills, including refills.
- Gabapentin โ 69 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 29 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 80% of clinicians listed under Internal Medicine - Hematology in California (2024, 117 clinicians with data). Median for this group: 420. Middle half: 205 to 871.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 444 in 2020 to 946 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1000 Fivepoint Ste 1000a
Irvine, CA 926182377
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Duarte, CA; Irvine, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: City Of Hope Medical Foundation; Regents Of The University Of California. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
University Of Virginia School Of Medicine
2011
What Public CMS Data Show
Internal Medicine - Hematology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
263 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $77,486 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $58,658 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
1,342 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$4,134,100 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $7,378.65 across 5 records.
By nature of payment
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $4,235.00 across 1 record.
- Consulting Fee: $3,090.25 across 3 records.
- Food and Beverage: $53.40 across 1 record.
Reporting-company totals (3 largest of 4)
- SOBI, INC: $4,235.00 across 1 record.
- Regeneron Pharmaceuticals, Inc.: $2,815.25 across 2 records.
- Cardinal Health 110 LLC: $275.00 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
15 years (graduated 2011)
CMS Doctors and Clinicians data list 2011 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
NPI first issued
2011
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Heyman has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Heyman as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Irvine and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under Internal Medicine - Hematology in California (2024, 117 clinicians with data). Median for this group: 420. Middle half: 205 to 871.
Too few clinicians listed under Internal Medicine - Hematology in Irvine have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Internal Medicine - Hematology in California (2024, 117 clinicians with data). Median for this group: $53,434. Middle half: $19,755 to $90,049.
Too few clinicians listed under Internal Medicine - Hematology in Irvine have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Internal Medicine - Hematology in California (2024, 117 clinicians with data). Median for this group: $40,279. Middle half: $15,592 to $71,530.
Too few clinicians listed under Internal Medicine - Hematology in Irvine have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Internal Medicine - Hematology in California (2024, 108 clinicians with data). Median for this group: 135. Middle half: 61 to 289.
Too few clinicians listed under Internal Medicine - Hematology in Irvine have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Internal Medicine - Hematology in California (2024, 108 clinicians with data). Median for this group: $449,772. Middle half: $55,980 to $1,271,016.
Too few clinicians listed under Internal Medicine - Hematology in Irvine have Medicare Part D data for 2024 to compare.
5 active clinicians are listed under Internal Medicine - Hematology with a practice address in Irvine, CA (179 in California).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 113% from 444 in 2020 to 946 in 2024.
- 2020: 444
- 2021: 510
- 2022: 585
- 2023: 663
- 2024: 946
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Medicare-allowed amount
Medicare-allowed amount increased 74% from $44,660 in 2020 to $77,486 in 2024.
- 2020: $44,660
- 2021: $53,332
- 2022: $60,314
- 2023: $64,714
- 2024: $77,486
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Paid by Medicare
Paid by Medicare increased 73% from $33,874 in 2020 to $58,658 in 2024.
- 2020: $33,874
- 2021: $41,039
- 2022: $46,443
- 2023: $48,718
- 2024: $58,658
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 387% from 242 in 2020 to 1,179 in 2024.
- 2020: 242
- 2021: 498
- 2022: 725
- 2023: 758
- 2024: 1,179
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30-day fills
30-day fills increased 414% from 261 in 2020 to 1,342 in 2024.
- 2020: 261
- 2021: 553
- 2022: 831
- 2023: 848
- 2024: 1,342
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Part D drug cost
Part D drug cost increased 604% from $587,421 in 2020 to $4,134,100 in 2024.
- 2020: $587,421
- 2021: $839,712
- 2022: $1,926,601
- 2023: $2,608,051
- 2024: $4,134,100
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 501% from $1,228.33 in 2021 to $7,378.65 in 2025.
- 2021: $1,228.33
- 2023: $6,373.19
- 2024: $3,458.76
- 2025: $7,378.65
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $7,378.65.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| SOBI, INC |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
Gamifant | General | $4,235.00 |
| Regeneron Pharmaceuticals, Inc. |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,662.00 |
| Regeneron Pharmaceuticals, Inc. |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,153.25 |
| Cardinal Health 110 LLC |
Consulting Fee
Cash or cash equivalent
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โ | General | $275.00 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
RYBREVANT | General | $53.40 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2019โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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242 | 85 | $67.00 | $16.90 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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189 | 119 | $344.59 | $67.39 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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143 | 48 | $518.71 | $147.38 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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91 | 62 | $390.40 | $98.87 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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67 | 35 | $273.70 | $80.01 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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38 | 37 | $503.58 | $132.42 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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37 | 28 | $67.00 | $16.93 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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27 | 27 | $585.59 | $135.52 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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27 | 23 | $344.48 | $97.29 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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27 | 11 | $397.37 | $120.56 |
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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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25 | 25 | $732.16 | $184.99 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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18 | 16 | $526.83 | $191.86 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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15 | 14 | $392.00 | $129.92 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Acyclovir | Acyclovir | 237 | 8,279 | $2,307.34 | 46 |
| Revlimid | Lenalidomide | 90 | 2,488 | $1,769,854.92 | 18 |
| Gabapentin | Gabapentin | 69 | 2,445 | $981.31 | 17 |
| Prednisone | Prednisone | 63 | 506 | $178.18 | 16 |
| Eliquis | Apixaban | 62 | 2,310 | $43,937.69 | 11 |
| Omeprazole | Omeprazole | 54 | 1,964 | $557.76 | 13 |
| Brukinsa | Zanubrutinib | 50 | 1,500 | $658,260.97 | โ |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 44 | 1,621 | $89.33 | 17 |
| Calquence | Acalabrutinib Maleate | 43 | 1,290 | $610,400.63 | โ |
| Entecavir | Entecavir | 41 | 1,350 | $12,763.45 | โ |
| Ondansetron Hcl | Ondansetron Hcl | 39 | 570 | $425.91 | 12 |
| Prochlorperazine Maleate | Prochlorperazine Maleate | 36 | 432 | $634.25 | 16 |
| Zarxio | Filgrastim-Sndz | 36 | 1,029 | $77,179.78 | โ |
| Hydroxyurea | Hydroxyurea | 34 | 2,001 | $670.37 | โ |
| Potassium Chloride | Potassium Chloride | 24 | 900 | $405.80 | โ |
| Trazodone Hcl | Trazodone Hcl | 24 | 750 | $70.91 | โ |
| Allopurinol | Allopurinol | 22 | 651 | $86.18 | 15 |
| Jakafi | Ruxolitinib Phosphate | 22 | 660 | $362,785.58 | โ |
| Imatinib Mesylate | Imatinib Mesylate | 22 | 765 | $26,998.95 | โ |
| Ondansetron Odt | Ondansetron | 21 | 483 | $733.62 | โ |
| Famotidine | Famotidine | 20 | 780 | $124.52 | โ |
| Lidocaine-Prilocaine | Lidocaine/Prilocaine | 19 | 570 | $273.76 | โ |
| Dexamethasone | Dexamethasone | 19 | 787 | $684.00 | โ |
| Cholestyramine | Cholestyramine (With Sugar) | 17 | 522 | $705.52 | โ |
| Venclexta | Venetoclax | 17 | 510 | $303,011.30 | โ |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-06-16NUCC Taxonomy Code: 207RH0000X
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
NUCC Taxonomy Code: 207RH0003X
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - HEMATOLOGY/ONCOLOGY
I20181120003175
CA
5799900395
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Regents Of The University Of California
200 W Arbor Dr, San Diego, CA 921033109
Phone: 8586577000
City Of Hope Medical Foundation
1000 Fivepoint, Irvine, CA 926182377
Phone: 9496714673
City Of Hope Medical Foundation
1500 Duarte Rd, Duarte, CA 910103012
Phone: 6262564673
Secondary Practice Locations
1000 Fivepoint Ste 1000b
Irvine, CA 926182377
Phone: 8008264673
1500 Duarte Rd
Duarte, CA 910103012
Phone: 8008264673
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Internal Medicine - Hematology
Doctor of Medicine (M.D.)
Obstetrics & Gynecology - Gynecologic Oncology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1000 FIVEPOINT STE 1000A, IRVINE, CA 926182377 (Tel: 9496714673)
Additional practice office at 1500 Duarte Rd, Duarte, CA 910103012
Additional practice office at 1000 Fivepoint Ste 1000B, Irvine, CA 926182377
Registered at PO BOX 232410, SAN DIEGO, CA 921932410
Internal Medicine (license number reported to NPPES: CA A157684)
NPI status registered as active in NPPES database
Registered at 2301 ERWIN RD, DURHAM, NC 277054699 (Tel: 2013147185)
Registered at 85 PROSPECT TER, TENAFLY, NJ 076701807 (Tel: 2013147185)
Recorded as BENJAMIN HEYMAN, M.D.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine - Hematology Specialists in Irvine
- Dr. Krisstina Gowin, DO
- Dr. Tamer Othman, MD
- Dr. Azra Borogovac, MD
- Dr. Julio Alvarenga Thiebaud, MD
Mailing Address
Po Box 232410
San Diego, CA 921932410