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DANIEL RITZ WITT MD
NPI 1710513510
Internal Medicine in Wellesley, MA

Active since March 12, 2020PECOS EnrolledAccepts Medicare Assignment
62 WALNUT ST STE 2, WELLESLEY, MA 02481(857) 678-3901(857) 314-6445 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 29, 2024, Jun 18, 2021, Mar 27, 2021 and 2 more (5 updates tracked since 2020).

About Daniel Ritz Witt Md NPPES

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

DANIEL RITZ WITT MD (NPI 1710513510) is an individual internal medicine provider in Wellesley, Massachusetts, licensed in Massachusetts (1017832) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1710513510
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDANIEL RITZ WITTCredential: MD
Location Address62 WALNUT ST STE 2Wellesley, MA 02481-2109
Mailing Address62 Walnut St Ste 2Wellesley Hills, MA 02481-2109 · (857) 678-3901 · Fax (857) 314-6445
Phone(857) 678-3901
Fax(857) 314-6445
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 12, 2020
Last NPPES UpdateJune 30, 20265 updates tracked since enumeration
NPPES CertifiedJune 30, 2026
✔ NPI 1710513510 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 1017832
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 1017832 (MA)
62 WALNUT ST STE 2, Wellesley, MA 02481
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Accepted Insurance

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

Daniel Ritz Witt Md 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 ID4385045509
PECOS Enrollment IDI20240608000048
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

3

Medicare enrollment records show Daniel Witt reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Goodhaven Health PLLC
Same address
Internal Medicine
62 WALNUT ST STE 2
Wellesley, MA 02481
  • Reassigned Medicare billing, Massachusetts enrollment
NPI 1003614140 (857) 678-3901
Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is
7.6 mi
Multi-Specialty
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • Also billed through NPI 1497151773 (Massachusetts)
  • 1,006 clinicians in this Medicare group
NPI 1861216038 (617) 667-2906
Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
7.6 mi
Internal Medicine
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,579 clinicians in this Medicare group
NPI 1194765438 (617) 754-9600

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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
192 services92 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
182 services101 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
161 services157 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
47 services47 patients

Hospital Affiliations CMS Care Compare 3

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

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220086
Location330 Brookline AvenueBoston, MA 02215 · Suffolk County
Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

Beth Israel Deaconess Hospital - Milton

Acute Care Hospitals · Milton, MA
4/5 CMS rating
OwnershipGovernment - Federal
CMS Certification Number220108
Location199 Reedsdale RoadMilton, MA 02186 · Norfolk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02481 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
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

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

GOODHAVEN HEALTH PLLC
Internal Medicine
62 WALNUT ST STE 2
WELLESLEY, MA 02481
Norfolk County (857) 678-3901

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 Witt's NPI number?

The NPI number for Daniel Witt is 1710513510. It was assigned to this individual provider in the NPPES registry on March 12, 2020.

Where is Daniel Witt located?

Daniel Witt practices at 62 Walnut St Ste 2, Wellesley, MA 02481. The listed phone number is (857) 678-3901.

What is Daniel Witt's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Daniel Witt enrolled in Medicare?

Yes. Daniel Witt 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 Witt's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Witt reassigns Medicare benefits to 3 organizations: Goodhaven Health PLLC (Wellesley, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). 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 Witt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Daniel Witt accept?

Health plans from Anthem Blue Cross and Blue Shield list Daniel Witt 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 Witt affiliated with any hospitals?

According to CMS data, Daniel Witt is affiliated with Beth Israel Deaconess Medical Center, Newton-Wellesley Hospital and Beth Israel Deaconess Hospital - Milton.

When was this NPI record last updated?

The NPPES record for Daniel Witt was last updated on June 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.