JONATHAN GEECHUN MA M.D.
NPI 1881937142
Anesthesiology in Modesto, CA

Q: What is Jonathan Ma's NPI number?

The NPI number for Jonathan Ma is 1881937142. It was assigned to this individual provider in the NPPES registry on April 4, 2013. The provider is also known as Jon Ma M.D..

Q: What is Jonathan Ma'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 Jonathan Ma was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since April 04, 2013PECOS EnrolledAccepts Medicare Assignment

600 COFFEE RD, MODESTO, CA 95355(209) 524-1211 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 17, 2018, Aug 17, 2017, Aug 8, 2017 (3 updates tracked since 2017).

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About Jonathan Geechun Ma M.d. NPPES

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

JONATHAN GEECHUN MA M.D. (NPI 1881937142) is an individual anesthesiology provider in Modesto, California, licensed in California (A147253) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in New Orleans, and is a graduate of Tulane University School Of Medicine (2013).

NPPES Registry Identity

NPI1881937142

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameJONATHAN GEECHUN MACredential: M.D.

Location Address600 COFFEE RDModesto, CA 95355-4201

Mailing Address600 Coffee RdModesto, CA 95355-4201 · (209) 521-6097

Phone(209) 524-1211

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 2013

Enumeration DateApril 4, 2013

Last NPPES UpdateMarch 17, 20183 updates tracked since enumeration

✔ NPI 1881937142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A147253

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.

600 COFFEE RD, Modesto, CA 95355

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Other Names 1

Other Name (5)Jon Ma M.d.

Secondary Practice Location 1

Location 14530 Constance StNew Orleans, LA 70115-1528 · Phone (925) 360-8888

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

Jonathan Geechun Ma 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 ID2163729708

PECOS Enrollment IDI20170821001422

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 Reassignment

Medicare enrollment records show Jonathan Ma reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Valley Medical Foundation

Same address

Multi-Specialty

600 COFFEE RD
Modesto, CA 95355

Reassigned Medicare billing, California enrollment
3,056 clinicians in this Medicare group

NPI 1669846986 (209) 524-1211

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 13

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 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.

57 services56 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.

56 services56 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

28 services28 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.

26 services26 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

20 services19 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.

19 services18 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.

14 services13 patients

Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance 64488

This procedure involves injecting a local anesthetic into the abdominal wall to manage pain. It's carried out on both sides of the abdomen using imaging guidance for precision. This helps numb the area, providing relief from discomfort.

14 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services14 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.

12 services12 patients

Anesthesia for other procedure on lower abdomen 00840

Anesthesia for a lower abdomen procedure involves medication to eliminate pain during surgery. You might be awake but relaxed and pain-free, or you may be completely unconscious. It's administered to ensure comfort and safety throughout the operation.

11 services11 patients

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

11 services11 patients

Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter 64448

This procedure involves the slow, steady delivery of a medication into your thigh nerve. An anesthetic agent or steroid is used to manage pain or inflammation. It's a safe, effective way to deliver medication directly to the area that needs it.

11 services11 patients

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.

RADHA CHIRUMAMILLA M.D.

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