Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1245261114 Individual Practitioner Male Practitioner

Dr. Randall S Williams , MD

General Practice • Chico, CA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Randall Williams, MD is a certified General Practice practicing in Chico, CA. With approximately 40 years of clinical experience since graduating from Loma Linda University School Of Medicine in 1986, Dr. Williams delivers high-quality medical care to the local community at 1040 MANGROVE AVE.

Dr. Williams is affiliated with Mangrove Medical Group and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include injection, romosozumab-aqqg, 1 mg, injection, denosumab, 1 mg, injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1040 Mangrove Ave

Chico, CA 959263509

Telephone 5303450064
Fax 5303450080
Associated Practice Facility / Clinic
🏢 Mangrove Medical Group Facility NPI 1326038381

Medicare Profile & Education

Medical School

Loma Linda University School Of Medicine

Graduation Year

1986

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Chico, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
40 Yrs +10.3 yrs vs City Avg
City Avg: 29.7 Yrs
State Avg: 31.1 Yrs
Regional Practice Density
17 Specialists

Practicing in Chico, CA (2300 Statewide)

Telehealth Adoption Rate
23.5% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
47.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williams (40 Years) 40 Yrs
Chico Specialty Average (29.7 Years) 29.7 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
J3111 Injection, romosozumab-aqqg, 1 mg
22,051 23 $15.89 $10.89
J0897 Injection, denosumab, 1 mg
12,480 122 $31.29 $25.52
J3304 Injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg
5,792 75 $42.60 $17.36
J1010 Injection, methylprednisolone acetate, 1 mg
4,480 52 $0.34 $0.13
99213 Established patient office or other outpatient visit, typically 15 minutes
3,721 1,285 $161.24 $91.39
36415 Insertion of needle into vein for collection of blood sample
2,026 1,098 $17.39 $8.59
83036 Hemoglobin A1C level
1,274 969 $23.50 $9.43
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
1,212 986 $29.20 $7.60
80053 Blood test, comprehensive group of blood chemicals
1,189 985 $44.94 $10.33
80061 Blood test, lipids (cholesterol and triglycerides)
1,134 985 $40.92 $12.98
84443 Blood test, thyroid stimulating hormone (TSH)
1,007 930 $74.28 $16.43
82607 Cyanocobalamin (vitamin B-12) level
960 935 $81.12 $14.72
82306 Vitamin d-3 level
960 922 $72.37 $28.76
82746 Folic acid level
932 920 $81.16 $14.38
J2250 Injection, midazolam hydrochloride, per 1 mg
863 142 $1.43 $0.13
86141 Measurement c-reactive protein for detection of infection or inflammation, high sensitivity
850 839 $51.85 $12.66
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
813 813 $218.94 $131.63
81001 Manual urinalysis test with examination using microscope, automated
641 520 $15.72 $3.11
G0328 Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous
501 501 $29.48 $17.69
81003 Automated urinalysis test
499 476 $11.78 $2.20
84403 Testosterone (hormone) level, total
481 465 $53.78 $25.17
84270 Sex hormone binding globulin (protein) level
472 463 $27.53 $21.22
G0008 Administration of influenza virus vaccine
459 449 $49.23 $32.84
90662 Influenza vaccine split virus, preservative free
450 440 $138.34 $79.88
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
433 226 $50.08 $14.70
84153 Psa (prostate specific antigen) measurement, total
324 274 $85.95 $17.65
84439 Thyroxine (thyroid chemical), free
302 267 $44.90 $8.76
77085 Bone density measurement using dedicated x-ray machine
287 286 $203.17 $55.06
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
278 52 $3.68 $0.96
90480 Admn sarscov2 vacc 1 dose
267 261 $49.14 $42.66
91322 Sarscov2 vac 50 mcg/0.5ml im
266 260 $274.51 $154.11
77089 Calculation of trabecular bone score (tbs) using imaging data with interpretation and report on fracture risk
240 239 $47.35 $42.03
G0103 Prostate cancer screening; prostate specific antigen test (psa)
217 217 $86.08 $18.92
84481 Thyroid hormone, t3 measurement, free
210 181 $34.21 $16.52
20610 Aspiration and/or injection of fluid from large joint
181 103 $129.08 $74.73
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito
154 144 $85.32 $59.14
84154 Psa (prostate specific antigen) measurement, free
154 125 $23.43 $17.80
J3010 Injection, fentanyl citrate, 0.1 mg
150 141 $9.68 $0.88
J1885 Injection, ketorolac tromethamine, per 15 mg
136 25 $9.69 $0.72
80305 Testing for presence of drug, read by direct observation
135 69 $45.26 $11.80
80048 Blood test, basic group of blood chemicals (calcium, total)
135 110 $33.73 $8.17
J0696 Injection, ceftriaxone sodium, per 250 mg
133 28 $3.83 $0.45
86140 Measurement C-reactive protein for detection of infection or inflammation
123 108 $45.57 $5.08
82040 Albumin (protein) level
107 84 $17.38 $4.85
82310 Calcium level, total
107 85 $17.35 $5.06
69209 Removal of impacted ear wax by washing
83 73 $51.46 $24.52
45380 Biopsy of large bowel using an endoscope
80 79 $795.74 $403.12
G0009 Administration of pneumococcal vaccine
72 70 $34.43 $32.06
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
70 68 $226.27 $128.48
80076 Liver function blood test panel
66 57 $28.64 $7.77
83735 Magnesium level
63 55 $15.70 $6.57
82728 Ferritin (blood protein) level
62 49 $70.08 $13.36
99497 Advance care planning, first 30 minutes
56 56 $113.72 $81.95
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older
54 54 $172.90 $121.11
84100 Phosphate level
49 33 $20.22 $4.65
83540 Iron level
48 37 $21.50 $6.34
83550 Iron binding capacity
48 37 $21.50 $8.57
72110 X-ray of lower and sacral spine, minimum of 4 views
45 45 $105.33 $53.86
93000 Routine ekg using at least 12 leads including interpretation and report
45 43 $56.60 $14.41
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen
45 42 $70.53 $50.28
87634 Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique
45 42 $95.80 $68.80
87502 Detection test by nucleic acid for multiple types influenza virus
45 42 $128.04 $93.88
71046 X-ray of chest, 2 views
44 43 $71.70 $35.22
83721 Ldl cholesterol level
44 40 $23.50 $10.29
17000 Destruction of skin growth
41 39 $197.11 $66.18
82274 Stool analysis for blood, by fecal hemoglobin determination by immunoassay
40 40 $29.18 $15.25
84550 Uric acid level, blood
38 33 $20.42 $4.43
99496 Transitional care management services for problem of high complexity
34 33 $373.85 $286.32
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
33 33 $312.35 $167.25
82172 Apolipoprotein level
31 29 $27.13 $20.67
17003 Destruction of precancer skin growth, 2-14 growths
31 16 $29.85 $7.06
73562 X-ray of knee, 3 views
31 28 $66.32 $43.20
83695 Lipoprotein (a) level
30 28 $19.47 $14.03
83698 Lipoprotein-associated phospholipase a2 (enzyme) level
30 28 $58.67 $45.38
G0105 Colorectal cancer screening; colonoscopy on individual at high risk
29 29 $610.52 $340.36
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes
28 28 $18.32 $12.17
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
27 25 $647.42 $373.83
J1040 Injection, methylprednisolone acetate, 80 mg
27 26 $26.50 $9.38
83970 Parathormone (parathyroid hormone) level
26 21 $52.12 $40.45
82570 Creatinine level to test for kidney function or muscle injury
24 19 $17.00 $5.08
82044 Urine microalbumin (protein) analysis
24 18 $16.92 $6.11
90671 Pneumococcal conjugate vaccine, 15 valent (pcv15), for intramuscular use
22 22 $443.65 $237.19
10060 Simple or single drainage of skin abscess
22 18 $353.94 $131.63
87493 Detection test for clostridium difficile
22 21 $51.64 $36.52
73030 X-ray of shoulder, minimum of 2 views
22 21 $61.27 $36.79
83090 Homocysteine (amino acid) level
20 20 $29.70 $17.56
84484 Troponin (protein) analysis, quantitative
20 20 $33.80 $12.22
82553 Creatine kinase (cardiac enzyme) level, mb fraction only
19 19 $33.74 $11.32
80069 Kidney function blood test panel
19 12 $44.74 $8.51
73502 X-ray of hip, 2-3 views
18 18 $79.44 $48.14
72050 X-ray of upper spine, 4 or 5 views
17 17 $88.71 $56.64
82248 Bilirubin level, direct
17 17 $17.29 $4.92
90673 Influenza vaccine, trivalent derived from recombinant dna
17 17 $140.00 $77.01
76700 Ultrasound of abdomen
16 16 $232.81 $121.81
85007 Microscopic examination for white blood cells with manual cell count
15 14 $6.51 $3.72
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
15 15 $198.95 $113.25
99495 Transitional care management services for problem of at least moderate complexity
14 14 $264.35 $211.74
76536 Ultrasound of head and neck
14 13 $228.43 $116.08
73130 X-ray of hand, minimum of 3 views
14 11 $60.14 $39.31
82150 Amylase (enzyme) level
14 13 $23.43 $6.35
83690 Lipase (fat enzyme) level
14 13 $13.43 $6.75
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test
13 12 $17.32 $6.34
86580 Skin test for tuberculosis
13 13 $17.92 $10.92
73630 X-ray of foot, minimum of 3 views
12 11 $56.75 $36.13
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
12 12 $618.47 $303.13
76770 Complete ultrasound scan behind abdominal cavity
11 11 $189.09 $113.56

Medical Specialties & State Licenses

General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License CA G068885

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
00G688850 (CA)

Hospital & Practice Group Affiliations

Mangrove Medical Group

1040 Mangrove Ave, Chico, CA 959263509

Phone: 5303450064268

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

14 Associated Practitioners
Joshua Schultz , FNP-BC

Nurse Practitioner - Family

NPI 1114884756

Family Nurse Practitioner (Board Certified)

Dr. Mark Schwab , MD

General Practice

NPI 1134137722

Doctor of Medicine (M.D.)

Dr. Kevin Sorensen , DO

General Practice

NPI 1144680141

Doctor of Osteopathic Medicine (D.O.)

Patria Mckiernan , NP

Nurse Practitioner - Women's Health

NPI 1306277686

Nurse Practitioner

Dr. Robert Avilla , DO

Family Medicine

NPI 1346687225

Doctor of Osteopathic Medicine (D.O.)

NPI 1407881741

Doctor of Medicine (M.D.), INC

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 09, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 09, 2007

Registered at 1040 MANGROVE AVE, CHICO, CA 959263509 (Tel: 5303450064)

📍
Updated Business Mailing Address July 09, 2007

Registered at 1040 MANGROVE AVE, CHICO, CA 959263509 (Tel: 5303450064)

👤
Provider Name / Credentials Updated July 09, 2007

Recorded as RANDALL WILLIAMS, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2007

General Practice (License #G068885 in CA)

🟢
Initial NPI Registration & Enumeration July 06, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1245261114
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 06, 2006
Last Update: July 09, 2007
Sole Proprietor: No

Mailing Address

1040 Mangrove Ave

Chico, CA 959263509

Phone: 5303450064

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.