DR. NATHAN YOCKEY WELTMAN MD PHD
NPI 1528453255
Anesthesiology in Boston, MA

Q: What is Nathan Weltman's NPI number?

The NPI number for Nathan Weltman is 1528453255. It was assigned to this individual provider in the NPPES registry on March 31, 2015.

Q: What is Nathan Weltman's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Weltman was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since March 31, 2015PECOS EnrolledAccepts Medicare Assignment

75 FRANCIS ST, BOSTON, MA 02115(617) 732-5500 Get Directions Write a Review

NPPES record last updated: July 31, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 31, 2026, Jul 6, 2020, May 15, 2020 and 1 more (4 updates tracked since 2019).

On this page

About Dr. Nathan Yockey Weltman Md Phd NPPES

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

DR. NATHAN YOCKEY WELTMAN MD PHD (NPI 1528453255) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Florida (ME144300) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS, is affiliated with Inova Fairfax Hospital, and maintains a secondary practice location in Baltimore.

NPPES Registry Identity

NPI1528453255

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. NATHAN YOCKEY WELTMANCredential: MD PHD

Location Address75 FRANCIS STBoston, MA 02115

Mailing Address75 Francis StBoston, MA 02115-6110 · (617) 732-5500

Phone(617) 732-5500

Sole ProprietorNo

Medical School CMSSanford School Of Medicine Of University Of South DakotaGraduated 2015

Enumeration DateMarch 31, 2015

Last NPPES UpdateJuly 31, 20264 updates tracked since enumeration

NPPES CertifiedJuly 31, 2026

✔ NPI 1528453255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in FL · ME144300✔ Licensed in SD · 0220✔ Licensed in MA · 278207

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

75 FRANCIS ST, Boston, MA 02115

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Secondary Practice Location 1

Location 11800 Orleans St Rm 6220Baltimore, MD 21287-0010 · Phone (410) 955-7615 · Fax (410) 955-9149

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. Nathan Yockey Weltman Md Phd 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 ID8527373810

PECOS Enrollment IDI20240605002695

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

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

Northstar Anesthesia Of Virginia, LLC

400 mi

Anesthesiology

2501 PARKERS LN
Alexandria, VA 22306

Reassigned Medicare billing, District of Columbia enrollment
634 clinicians in this Medicare group

NPI 1194488791 (214) 687-0497

Dogwood Anesthesia Providers, LLC

476 mi

Anesthesiology

7101 JAHNKE RD
Richmond, VA 23225

Reassigned Medicare billing, Virginia enrollment
167 clinicians in this Medicare group

NPI 1982329900 (804) 483-0817

Spectrum Health Primary Care Partners

737 mi

Radiology

4100 LAKE DR SE, SUITE 102
Grand Rapids, MI 49546

Reassigned Medicare billing, Michigan enrollment
2,446 clinicians in this Medicare group

NPI 1528374683 (616) 974-4800

Us Anesthesia Partners Of Florida Inc.

1,106 mi

Anesthesiology

851 TRAFALGAR CT, SUITE 200E
Maitland, FL 32751

Reassigned Medicare billing, Florida enrollment
2,356 clinicians in this Medicare group

NPI 1518910520 (321) 422-7155

Florida Hospital Physician Group Inc

1,171 mi

Family Medicine

3000 MEDICAL PARK DR, STE 320
Tampa, FL 33613

Reassigned Medicare billing, Florida enrollment
1,719 clinicians in this Medicare group

NPI 1174955256 (813) 336-5766

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 15

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.

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

69 services69 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

48 services38 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

44 services43 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

41 services40 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

33 services32 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

21 services21 patients

Anesthesia for procedure on heart and large blood vessels 00560

Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.

20 services20 patients

Anesthesia for procedure to assess heart electrical activity 00537

Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.

19 services19 patients

Anesthesia for heart artery bypass grafting on heart-lung machine 00567

Anesthesia for heart artery bypass grafting on a heart-lung machine involves administering medications to induce sleep and eliminate pain during surgery. The heart-lung machine takes over heart and lung functions, ensuring blood flow and oxygen supply to the body.

17 services17 patients

Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older) 00562

This procedure involves administering anesthesia to ensure comfort and safety during heart or large blood vessel operations. A heart-lung machine is used to take over the heart's function, allowing the surgeon to work on a still heart. Suitable for individuals aged 1 year and older.

16 services16 patients

Anesthesia for other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

15 services15 patients

Anesthesia for other closed procedure on chest 00520

Anesthesia for a closed chest procedure involves the use of medications to block sensation, ensuring you don't feel pain during the procedure. It can be general (you're asleep) or regional (part of your body is numbed). This helps maintain comfort and safety.

13 services13 patients

Anesthesia for x-ray or radiation therapy 01922

Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.

13 services13 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

12 services12 patients

Anesthesia for other procedure on upper abdomen 00790

Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490063

Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County

Emergency services Birthing friendly

Inova Fair Oaks Hospital

Acute Care Hospitals · Fairfax, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number490101

Location3600 Joseph Siewick DriveFairfax, VA 22033 · Fairfax County

Birthing friendly

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.

RUMA RAJBHANDARI

Internal Medicine (Gastroenterology)

75 FRANCIS ST
BOSTON, MA 02115

Suffolk County (617) 525-6841

WENYA LINDA BI

Neurological Surgery

75 FRANCIS ST
BOSTON, MA 02115

Suffolk County (203) 645-9485

CHI YUEN CHAN M.D.

Student in an Organized Health Care Education/Training Program

75 FRANCIS ST
BOSTON, MA 02115

Suffolk County (617) 732-5500

JENNIFER MICHELLE THOMAS MD

Radiology (Diagnostic Radiology)

75 FRANCIS ST, DEPARTMENT OF RADIOLOGY
BOSTON, MA 02115

Suffolk County (617) 732-6248

GAURAV SHARMA M.D.

Surgery (Vascular Surgery)

75 FRANCIS ST, BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115

Suffolk County (951) 259-0890

YEU-SHIN CINDY CHANG M.D., M.P.H.

Emergency Medicine

75 FRANCIS ST, BWH DEPT. OF EMERGENCY MEDICINE
BOSTON, MA 02115

Suffolk County (617) 732-8070

CARA L RICHARDS

Physician Assistant

75 FRANCIS ST
BOSTON, MA 02115

Suffolk County (617) 732-5500

LARA COAKLEY

Nurse Practitioner (Family)

75 FRANCIS ST
BOSTON, MA 02115

Suffolk County (617) 732-5500

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 Nathan Weltman's NPI number?

The NPI number for Nathan Weltman is 1528453255. It was assigned to this individual provider in the NPPES registry on March 31, 2015.

Where is Nathan Weltman located?

Nathan Weltman practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.

What is Nathan Weltman's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Nathan Weltman enrolled in Medicare?

Yes. Nathan Weltman 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 Nathan Weltman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Weltman reassigns Medicare benefits to 5 organizations: Northstar Anesthesia Of Virginia, LLC (Alexandria, VA), Dogwood Anesthesia Providers, LLC (Richmond, VA), Spectrum Health Primary Care Partners (Grand Rapids, MI), Us Anesthesia Partners Of Florida Inc. (Maitland, FL) and Florida Hospital Physician Group Inc (Tampa, FL). 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 Nathan Weltman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nathan Weltman affiliated with any hospitals?

According to CMS data, Nathan Weltman is affiliated with Inova Fairfax Hospital and Inova Fair Oaks Hospital.

When was this NPI record last updated?

The NPPES record for Nathan Weltman was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.