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ZACHARY DOYLE WALTON M.D., PH.D.
NPI 1891009247
Anesthesiology in San Diego, CA

Active since July 27, 2010PECOS EnrolledAccepts Medicare Assignment
3626 RUFFIN RD, SAN DIEGO, CA 92123(858) 565-9666(858) 565-9441 Get Directions Write a Review

NPPES record last updated: July 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 27, 2026, Nov 6, 2024 (2 updates tracked since 2024).

About Zachary Doyle Walton M.d., Ph.d. NPPES

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

ZACHARY DOYLE WALTON M.D., PH.D. (NPI 1891009247) is an individual anesthesiology provider in San Diego, California, licensed in Florida (ME169492) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS, is affiliated with Anna Jaques Hospital, and is a graduate of Yale University School Of Medicine (2010).

NPPES Registry Identity

NPI1891009247
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameZACHARY DOYLE WALTONCredential: M.D., PH.D.
Location Address3626 RUFFIN RDSan Diego, CA 92123-1810
Mailing Address1210 S Old Dixie HwyJupiter, FL 33458-7205 · (561) 744-4477
Phone(858) 565-9666
Fax(858) 565-9441
Sole ProprietorNo
Medical School CMSYale University School Of MedicineGraduated 2010
Enumeration DateJuly 27, 2010
Last NPPES UpdateJuly 27, 20262 updates tracked since enumeration
NPPES CertifiedJuly 27, 2026
✔ NPI 1891009247 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in FL · ME169492
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.
3626 RUFFIN RD, San Diego, CA 92123
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.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

Zachary Doyle Walton M.d., Ph.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 ID446572671
PECOS Enrollment IDI20220727002012
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

6

Medicare enrollment records show Zachary Walton reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Jupiter Anesthesia Associates LLC
2,247 mi
Anesthesiology
1210 S OLD DIXIE HWY
Jupiter, FL 33458
  • Reassigned Medicare billing, Florida enrollment
  • 207 clinicians in this Medicare group
NPI 1700073848 (954) 939-5000
Mass General Brigham Medical Group Western Massachusetts Inc
2,497 mi
Family Medicine
30 LOCUST ST
Northampton, MA 01060
  • Reassigned Medicare billing, Massachusetts enrollment
  • 539 clinicians in this Medicare group
NPI 1295787919 (413) 582-2898
Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is
2,570 mi
Obstetrics & Gynecology
392 CHESTNUT ST
Needham, MA 02492
  • Reassigned Medicare billing, Massachusetts enrollment
  • Also billed through NPI 1952358533 (Massachusetts)
  • 556 clinicians in this Medicare group
NPI 1255818472 (617) 754-1800
Brigham & Womens Physicians Organization Inc
2,576 mi
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
NPI 1033535497 (617) 732-5500
Pratt Anesthesiology Associates, Inc
2,579 mi
Anesthesiology
800 WASHINGTON ST, BOX 1013
Boston, MA 02111
  • Reassigned Medicare billing, Massachusetts enrollment
  • 246 clinicians in this Medicare group
NPI 1326085390 (617) 636-5000
Capa Anesthesia LLC
2,585 mi
Anesthesiology
99 LIBBEY INDUSTRIAL PARK
Weymouth, MA 02189
  • Reassigned Medicare billing, Massachusetts enrollment
  • 115 clinicians in this Medicare group
NPI 1629723002 (781) 331-0537

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 7

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.

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.
123 services121 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
40 services40 patients
Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
25 services24 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.
25 services24 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
16 services16 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.
15 services15 patients

Hospital Affiliations CMS Care Compare

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

Anna Jaques Hospital

Acute Care Hospitals · Newburyport, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220029
Location25 Highland AvenueNewburyport, MA 01950 · Essex County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Post-Anesthetic Transfer of Care Measure: Procedure Room to a Post Anesthesia Care Unit (PACU)
Percentage of patients, regardless of age, who are under the care of an anesthesia practitioner and are admitted to a PACU or other non-ICU location in which a post-anesthetic formal transfer of care protocol or checklist which includes the key transfer of…
8%334 patients1/55-star benchmark: 100%
Pre-operative OSA assessment
Percentage of patients who undergo a surgical procedure in the operating room/procedure room that have a pre-operative assessment for Obstructive Sleep Apnea (OSA)
45%1,062 patients1/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

THOMAS J. PIETUCH M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
DR. JEFFREY KOJI SAKIHARA M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
MARK SETH CHRISTOFFERSON MD
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
QUINN S HUME DO
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
STEVEN A. SALTZ M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
TATYANA FELDMAN MD
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
DR. JAMES BRIAN BILLYS MD
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666
DARCI J. TOM M.D.
Anesthesiology
3626 RUFFIN RD
SAN DIEGO, CA 92123
San Diego County (858) 565-9666

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 Zachary Walton's NPI number?

The NPI number for Zachary Walton is 1891009247. It was assigned to this individual provider in the NPPES registry on July 27, 2010.

Where is Zachary Walton located?

Zachary Walton practices at 3626 Ruffin Rd, San Diego, CA 92123. The listed phone number is (858) 565-9666.

What is Zachary Walton's specialty?

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

Is Zachary Walton enrolled in Medicare?

Yes. Zachary Walton 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 Zachary Walton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Walton reassigns Medicare benefits to 6 organizations: Jupiter Anesthesia Associates LLC (Jupiter, FL), Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Needham, MA), Brigham & Womens Physicians Organization Inc (Boston, MA), Pratt Anesthesiology Associates, Inc (Boston, MA) and 1 more organization, listed in the Medicare section above. 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 Zachary Walton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Zachary Walton accept?

Health plans from Molina Healthcare list Zachary Walton 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 Zachary Walton affiliated with any hospitals?

According to CMS data, Zachary Walton is affiliated with Anna Jaques Hospital.

When was this NPI record last updated?

The NPPES record for Zachary Walton was last updated on July 27, 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.