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DR. DANIEL ERIC FASS M.D.
NPI 1215049184
Radiology - Radiation Oncology in Rye, NY

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment
1 THEALL RD, STE 107, RYE, NY 10580(914) 848-8950(914) 848-8951 Get Directions Write a Review

NPPES record last updated: October 31, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Daniel Eric Fass M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DANIEL ERIC FASS M.D. (NPI 1215049184) is an individual radiation oncology provider in Rye, New York, licensed in New York (1611931) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Watauga Medical Center, and is a graduate of Howard University College Of Medicine (1983).

NPPES Registry Identity

NPI1215049184
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameDR. DANIEL ERIC FASSCredential: M.D.
Location Address1 THEALL RD, STE 107Rye, NY 10580
Mailing Address2700 Westchester Ave, 2nd FloorPurchase, NY 10577-2547 · (914) 682-6538 · Fax (914) 457-1583
Phone(914) 848-8950
Fax(914) 848-8951
Sole ProprietorNo
Medical School CMSHoward University College Of MedicineGraduated 1983
Enumeration DateAugust 31, 2006
Last NPPES UpdateOctober 31, 2013
✔ NPI 1215049184 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
License✔ Licensed in NY · 1611931
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
1 THEALL RD, Rye, NY 10580
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of NC.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Daniel Eric Fass M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID345332474
PECOS Enrollment IDI20220920000158, I20260609001901
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show Daniel Fass reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Silver Spring Health Care Management, Inc
119 mi
Radiation Oncology
142 KENYON AVE
Wakefield, RI 02879
  • Reassigned Medicare billing, Rhode Island enrollment
  • 4 clinicians in this Medicare group
NPI 1891317509 (401) 284-0850
Roger Williams Radiation Therapy, LLC
132 mi
Radiation Oncology
50 MAUDE ST
Providence, RI 02908
  • Reassigned Medicare billing, Rhode Island enrollment
  • 7 clinicians in this Medicare group
NPI 1013078450 (401) 456-2690
Southern New England Regional Cancer Center, LLC
135 mi
Radiation Oncology
115 CASS AVE STE 1
Woonsocket, RI 02895
  • Reassigned Medicare billing, Rhode Island enrollment
  • 7 clinicians in this Medicare group
NPI 1134109697 (401) 356-1701
University Of North Carolina At Chapel Hill
406 mi
Neurological Surgery
2206 WILBORN AVE, SUITE ONE
South Boston, VA 24592
  • Reassigned Medicare billing, North Carolina enrollment
  • 2,797 clinicians in this Medicare group
NPI 1407308703 (984) 974-1273
Watauga Medical Center Inc
541 mi
General Acute Care Hospital
336 DEERFIELD RD
Boone, NC 28607
  • Reassigned Medicare billing, North Carolina enrollment
  • 129 clinicians in this Medicare group
NPI 1205859766 (828) 262-4100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment G6017
In radiation therapy, intra-fraction localization and tracking monitor patient or target movement during treatment. This ensures that radiation is accurately delivered to the correct area. Techniques like 3D positional tracking, gating, and 3D surface tracking are used to enhance precision.
628 services47 patients
Radiation treatment management, 5 treatment sessions 77427
Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.
182 services47 patients
Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
124 services39 patients
Design and construction of complex radiation treatment device 77334
The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.
75 services40 patients
Design and construction of radiation treatment device for high precision radiation therapy 77338
A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.
39 services30 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
36 services36 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Watauga Medical Center

Acute Care Hospitals · Boone, NC
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number340051
Location336 Deerfield RoadBoone, NC 28607 · Watauga County
Emergency services Birthing friendly

Ashe Memorial Hospital

Critical Access Hospitals · Jefferson, NC
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number341325
Location200 Hospital AveJefferson, NC 28640 · Ashe County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10580 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SARA ELIAS MD
Obstetrics & Gynecology
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8800
DR. ERIC SUN MD
Internal Medicine (Cardiovascular Disease)
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8777
DR. PATRICIA T CALAYAG M.D.
Obstetrics & Gynecology
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8800
DR. DAVID A HERZOG MD
Internal Medicine
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8700
ALEXANDRA FRANCO PA-C
Physician Assistant
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8800
IAN YARETT
Internal Medicine
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8700
GINA NINAN FNP
Nurse Practitioner (Family)
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8700
DR. ADNAN K DIWAN MD
Internal Medicine
1 THEALL RD
RYE, NY 10580
Westchester County (914) 848-8700

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Daniel Fass's NPI number?

The NPI number for Daniel Fass is 1215049184. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Daniel Fass located?

Daniel Fass practices at 1 Theall Rd Ste 107, Rye, NY 10580. The listed phone number is (914) 848-8950.

What is Daniel Fass's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Daniel Fass enrolled in Medicare?

Yes. Daniel Fass is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Daniel Fass's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Fass reassigns Medicare benefits to 5 organizations: Silver Spring Health Care Management, Inc (Wakefield, RI), Roger Williams Radiation Therapy, LLC (Providence, RI), Southern New England Regional Cancer Center, LLC (Woonsocket, RI), University Of North Carolina At Chapel Hill (South Boston, VA) and Watauga Medical Center Inc (Boone, NC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Daniel Fass's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Daniel Fass accept?

Health plans from Blue Cross and Blue Shield of NC list Daniel Fass as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Daniel Fass affiliated with any hospitals?

According to CMS data, Daniel Fass is affiliated with Watauga Medical Center and Ashe Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Daniel Fass was last updated on October 31, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.