Dr. Jonathan Geechun Ma , MD
Anesthesiology โข Modesto, CA
600 Coffee Rd
Modesto, CA 953554201
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on April 4, 2013; this date does not establish years in practice.
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Published CMS data list 293 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 00731 โ Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope: 57 service units.
- 00812 โ Anesthesia for exam of colon using an endoscope: 56 service units.
- 99204 โ New patient outpatient office visit: 28 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 13 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 102 Medicare Part D prescriptions, including refills, in 2014.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2014. Published rows only; this is not a quality measure.
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Published Part D records, 2014:
- Amlodipine Besylate โ 31 prescription fills, including refills.
- Lisinopril โ 22 prescription fills, including refills.
- Simvastatin โ 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2014. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Anesthesiology in Modesto, CA (2024, 40 clinicians with data). Median for this group: 140. Middle half: 41 to 253.
More Medicare Part B services than 85% of clinicians listed under Anesthesiology in California (2024, 3,362 clinicians with data). Median for this group: 98. Middle half: 43 to 196.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 158 in 2020 to 293 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
600 Coffee Rd
Modesto, CA 953554201
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in New Orleans, LA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Sutter Valley Medical Foundation. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Tulane University School Of Medicine
2013
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
349 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $41,551 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $34,156 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
124 standardized 30-day fills in 2014
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$664 in 2014
The total cost of these prescriptions in 2014, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2014.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
13 years (graduated 2013)
CMS Doctors and Clinicians data list 2013 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2013
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Ma has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Ma as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Modesto and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Anesthesiology in Modesto, CA (2024, 40 clinicians with data). Median for this group: 140. Middle half: 41 to 253.
More Medicare Part B services than 85% of clinicians listed under Anesthesiology in California (2024, 3,362 clinicians with data). Median for this group: 98. Middle half: 43 to 196.
Medicare-allowed amount
A higher Medicare-allowed amount than 80% of clinicians listed under Anesthesiology in Modesto, CA (2024, 40 clinicians with data). Median for this group: $23,397. Middle half: $5,798 to $37,240.
A higher Medicare-allowed amount than 80% of clinicians listed under Anesthesiology in California (2024, 3,362 clinicians with data). Median for this group: $14,888. Middle half: $6,161 to $30,571.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Anesthesiology in Modesto, CA (2024, 40 clinicians with data). Median for this group: $18,669. Middle half: $4,604 to $29,529.
A higher Medicare payment amount than 85% of clinicians listed under Anesthesiology in California (2024, 3,362 clinicians with data). Median for this group: $11,899. Middle half: $4,899 to $24,300.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Ma are from 2014.
75 active clinicians are listed under Anesthesiology with a practice address in Modesto, CA (7,574 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Modesto
1.3% of these 75 clinicians have the CMS telehealth indicator.
66.7% of these 75 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 85% from 158 in 2020 to 293 in 2024.
- 2020: 158
- 2021: 228
- 2022: 269
- 2023: 262
- 2024: 293
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Medicare-allowed amount
Medicare-allowed amount increased 80% from $23,076 in 2020 to $41,551 in 2024.
- 2020: $23,076
- 2021: $31,999
- 2022: $33,470
- 2023: $38,611
- 2024: $41,551
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Paid by Medicare
Paid by Medicare increased 89% from $18,065 in 2020 to $34,156 in 2024.
- 2020: $18,065
- 2021: $25,316
- 2022: $26,714
- 2023: $30,864
- 2024: $34,156
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2014 only.
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30-day fills
CMS data for 30-day fills are available for 2014 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2014 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2014), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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00731
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
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57 | 56 | $1164.21 | $143.02 |
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00812
Anesthesia for exam of colon using an endoscope
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56 | 56 | $1042.50 | $115.35 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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28 | 28 | $542.00 | $131.87 |
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00813
Anesthesia for procedure on small and large bowel using an endoscope
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26 | 26 | $1303.08 | $169.72 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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20 | 19 | $357.00 | $96.25 |
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00790
Anesthesia for other procedure on upper abdomen
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19 | 18 | $2321.05 | $308.26 |
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00142
Anesthesia for lens surgery
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14 | 13 | $990.00 | $126.59 |
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64488
Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance
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14 | 14 | $662.00 | $66.32 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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14 | 14 | $479.00 | $142.90 |
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00811
Anesthesia for other procedure on large bowel using an endoscope
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12 | 12 | $1085.00 | $136.39 |
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00840
Anesthesia for other procedure on lower abdomen
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11 | 11 | $2201.82 | $298.55 |
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64447
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)
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11 | 11 | $542.00 | $60.57 |
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64448
Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter
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11 | 11 | $295.00 | $69.44 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2014.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amlodipine Besylate | Amlodipine Besylate | 31 | 1,170 | $148.76 | โ |
| Lisinopril | Lisinopril | 22 | 660 | $103.86 | โ |
| Simvastatin | Simvastatin | 13 | 630 | $54.13 | โ |
| Pravastatin Sodium | Pravastatin Sodium | 13 | 390 | $257.58 | โ |
| Hydrochlorothiazide | Hydrochlorothiazide | 12 | 360 | $60.00 | โ |
| Metoprolol Tartrate | Metoprolol Tartrate | 11 | 510 | $39.70 | โ |
Source: CMS Part D by Provider and Drug, 2014; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207L00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20170821001422
CA
2163729708
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Sutter Valley Medical Foundation
1700 Coffee Rd, Modesto, CA 953552803
Phone: 2095264500
Sutter Valley Medical Foundation
600 Coffee Rd, Modesto, CA 953554201
Phone: 2095241211
Sutter Valley Medical Foundation
2800 L St, Sacramento, CA 958165616
Secondary Practice Locations
4530 Constance St
New Orleans, LA 701151528
Phone: 9253608888
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Hospitalist
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 600 COFFEE RD, MODESTO, CA 953554201 (Tel: 2095241211)
Registered at 600 COFFEE RD, MODESTO, CA 953554201 (Tel: 2095216097)
Recorded as JONATHAN MA, M.D.
Anesthesiology (license number reported to NPPES: CA A147253)
Registered at 600 COFFEE RD, MODESTO, CA 953554201 (Tel: 2095241211)
Registered at 600 COFFEE RD, MODESTO, CA 953554201 (Tel: (209) 521-6097)
Anesthesiology (license number reported to NPPES: CA A147253)
NPI status registered as active in NPPES database
Registered at 4530 CONSTANCE ST, NEW ORLEANS, LA 701151528 (Tel: 9253608888)
Registered at 4530 CONSTANCE ST, NEW ORLEANS, LA 701151528 (Tel: 9253608888)
Recorded as JONATHAN MA, M.D.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Anesthesiology Specialists in Modesto
- Dr. Won Kim, MD
- Dr. Jorge Kurek, MD
- Dr. Priscilla Morris, MD MBA
- Dr. Jacqueline Decayette, MD
- Dr. Kenneth Imanaka, MD
- Dr. Paul Luu, MD
Mailing Address
600 Coffee Rd
Modesto, CA 953554201
Phone: 2095216097